Papers - NAKAO Wataru
about 168-
Optimization method for self-healing improver in fiber-reinforced ceramics using SiC healing agent
Tamagawa, Y; Kowada, R; Nakao, W
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY 2025.5
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Strengthening by Introducing Discontinuous Structure of Ceramics
SAWADA Takeyuki, MAKI Yuto, IKARI Shunsuke, YAMAMOTO Keisuke, KAWAI Shuji, NAKAO Wataru
Taikabutsu 77 ( 4 ) 162 - 169 2025.4
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Technical Association of Refractoreies,Japan Joint Work
We propose a new design guideline for static fracture resistance of mechanically discontinuous ceramics. In this study, discontinuity ceramics using pottery materials were fabricated by intentionally introducing defects. Dense and porous layer laminates with very high interface consistency were used as a sample. The 3-point bending strength of the laminates was 40 % higher than that of the dense monolayer. This is thought to be that the excessive fracture energy was required to flatten the pores in the porous layer when a 3-point bending load was applied. Furthermore, the 3-point bending strength of laminates in which elastic modulus discontinuities were intentionally established by dividing the uniaxial pressing of dense pottery materials into several times was found to be 25 % higher than that of dense monolayer. Thus, in heterogeneous ceramics, high-strength materials could be created by intentionally introducing the gap in elastic modulus.
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Fracture resistance of pottery laminates with intentionally introduced defects
Sawada, T; Maki, Y; Ikari, S; Yamamoto, K; Kawai, S; Nakao, W
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY 22 ( 2 ) 2025.3
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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The effect of TiSi2 healing improver in self-healing ability of ceramics
Yuki Tamagawa, Kazuto Okayasu, Wataru Nakao
Smart Materials and Structures 33 ( 8 ) 2024.7 [Reviewed]
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Single Work
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Lee, J; Akutsu, Y; Nakao, W
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY 21 ( 3 ) 2228 - 2234 2024.5 [Reviewed]
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Joint Work
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Advanced Ceramics with Dual Functions of Healing and Decomposition
Sekine, N; Nakajima, Y; Kamo, T; Ito, M; Nakao, W
MATERIALS 17 ( 3 ) 2024.2 [Reviewed]
Authorship：Last author Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Advanced Self-Healing Ceramics with Controlled Degradation and Repair by Chemical Reaction
Nobuhide Sekine, and Wataru Nakao
Materials 16 ( 19 ) 2023.9 [Reviewed]
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Joint Work
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Stress-Driven Magnetic Barkhausen Noise Generation in FeCo Magnetostrictive Alloy
Yamazaki Takahiro, Furuya Yasubumi, Hata Seiichi, Nakao Wataru
IEEE TRANSACTIONS ON MAGNETICS 58 ( 1 ) 2022.1
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Focus on self-healing materials: recent challenges and innovations
Nakao Wataru, Osada Toshio, Nishiwaki Tomoya, Otsuka Hideyuki
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 22 ( 1 ) 234 - 234 2021.12 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Kinetic Analysis on decarburizing of Spring Steel
NAKAO Wataru, MIYATA Masaharu, SHIBUYA Nobuhiro, KAI Morimichi, ISHIBASHI Fumiya, NEISHI Yutaka, SU … Show more authors
NAKAO Wataru, MIYATA Masaharu, SHIBUYA Nobuhiro, KAI Morimichi, ISHIBASHI Fumiya, NEISHI Yutaka, SUZUKI Shoichi, MATSUI Naoto, IWAMOTO Takashi, YoshiyaFUJITA, AMANO Fudamitsu, EGUCHI Takuhiro Hide authors
Transactions of Japan Society of Spring Engineers 2021 ( 66 ) 97 - 106 2021.3 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Spring Engineers Joint Work
<p>The guideline as kinetic equation of decarburizing to prevent excess decrease in fatigue strength, which is expressed as temperature the quenching starts, has been proposed from the systematic investigation on decarburizing spring steels;</p><p><i>T</i><sub>Q</sub> = 910 + 44.7<sup>%</sup>Si - 30<sup>%</sup>Mn - 11<sup>%</sup>Cr - 15.2<sup>%</sup>Ni + 31.5<sup>%</sup>Mo - 203√<sup>%</sup>C - (<sup>%</sup>C - <i>C<sub>S</sub></i>) {1 - exp (-(3.29 × 10<sup>8</sup><i>t</i>) / 2<i>d</i> exp (-(3.61 × 10<sup>4</sup>) / (<i>T</i><sub>h</sub>' + 273)))}</p><p>where <sup>%</sup>M[mass%] indicates content of element M in steel, <i>d</i>[m] initial particle size of austenite. Referring the guideline, quenching from above the evaluated temperature, <i>T</i><sub>Q</sub> can prevent excess decrease in fatigue strength the spring steel exposed to high temperature decarburizing atmosphere, whose temperature is <i>T</i><sub>h</sub>'[°C] and decarburizing time is <i>t</i>[s], because the quenching leads to form the quench microstructure without surface ferrite layer. In the case that the exposed atmosphere is excess CO<sub>2</sub> content, as same as the atmosphere of gas combustion furnace, the value of surface carbon content, <i>C</i><sub>S</sub>[mass%] can be employed to be 0.2. Moreover, if the cooling rate is grater than 80 °C/s corresponding to the cooling rate of oil quenching, the guideline can be used to every spring steels. Similarly if temperature rise is slow, the guideline can be acceptable with modification of the term of decarburizing time to <i>t</i> + 0.03<i>t</i><sub>r</sub>, where <i>t</i><sub>r</sub>[s] is the time period of temperature rise.</p>
Other Link： https://ci.nii.ac.jp/naid/130008095293
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Microstructure-Enhanced Inverse Magnetostrictive Effect in Fe-Co Alloy Wires
Yamazaki Takahiro, Katabira Kenichi, Narita Fumio, Furuya Yasubumi, Nakao Wataru
ADVANCED ENGINEERING MATERIALS 22 ( 10 ) 2000026-1 - 2000026-9 2020.6 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Wiley Joint Work
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Mechanism of stopping crack propagation in continuous fiber reinforced self-healing ceramic
Lee Jang-Won, Nam Ki-woo, Nakao Wataru
JOURNAL OF CERAMIC PROCESSING RESEARCH 21 ( 2 ) 200 - 207 2020.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Joining of Al2O3 Rods Using Microwaves and Employing Sic Particles as Adhesive
Kimura Natsuko, Fujii Takashi, Kashimura Keiichiro, Nakao Wataru
PROCESSES 7 ( 10 ) 750 2019.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Finite Element Analysis of the Size Effect on Ceramic Strength
Kyohei Takeo, Yuya Aoki, Toshio Osada, Wataru Nakao, Shingo Ozaki
Materials Vol.12 ( 18 ) 2019.9 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI Joint Work
Other Link： https://doi.org/10.3390/ma12182885
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Magnetic and magnetostrictive properties in heat-treated Fe-Co wire for smart material/ device
Takahiro YAMAZAKI, Takahisa YAMAMOTO, Yasubumi FURUYA, Wataru NAKAO
Mechanical Engineering Journal 2019.9 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Kenta Goto, Tomoyuki Hirata, Isao Yamamoto, Wataru Nakao
MOLECULES Vol.24 ( 13 ) 2019.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI Joint Work
Other Link： https://doi.org/10.3390/molecules24132420
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Advanced Fiber Reinforced Self-Healing Ceramics for Middle Range Temperature
Wataru Nakao, Taira Hayakawa, Tesuro Yanaseko, Shingo Ozaki
Key Engineering Materials Vol.810 119 - 124 2019.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Scientific.net Joint Work
Other Link： https://doi.org/10.4028/www.scientific.net/KEM.810.119
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Investigation on Effectiveness and Shape Recovery Ratio of Shape Recovery Self-Healing Plastic
Hanna Ueshima, Wataru Nakao
Key Engineering Materials Vol.810 125 - 130 2019.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Scientific.net Joint Work
Other Link： https://doi.org/10.4028/www.scientific.net/KEM.810.125
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Deformation mechanism of capsule-type hydrogen-storage-alloy actuator
Kenta Goto, Tomoyuki Hirata, Takehiro Higuchi, Ohmi Fuchiwaki, Shingo Ozaki, Wataru Nakao
International Journal of Hydrogen Energy VOl.44 ( 31 ) 16877 - 16886 2019.5 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Science Direct Joint Work
Other Link： https://doi.org/10.1016/j.ijhydene.2019.04.249
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Experimental evaluation of domain wall dynamics by Barkhausen noise analysis in Fe30Co70 magnetostrictive alloy wire
T. Yamazaki, Y. Furuya, W. Nakao
Journal of Magnetism and Magnetic Materials 475 240 - 248 2019.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Microwave Heating Behavior of Al<sub>4</sub>SiC<sub>4</sub> in 2.45 GHz band
Kimura Natsuko, Fujii Takashi, Kashimura Keiichiro, Nakao Wataru
Journal of the Japan Society of Electromagnetic Wave Energy Applications 3 ( 0 ) 40 - 45 2019
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Electromagnetic Wave Energy Applications Joint Work
The heating properties were investigated for Al<sub>4</sub>SiC<sub>4</sub> powders with various particle sizes (3.0 μm to 1-2 mm) to develop 2.45GHz microwave well absorber. The single-mode cavity, which is able to separate electric field heating and magnetic field heating, was employed as microwave heating systems and the heating behavior was investigated at separated electrical field employing a radiation thermometer. Their electrical permittivity for 2.45GHz were measured by the cavity perturbation method. Al<sub>4</sub>SiC<sub>4</sub> were compared with Al<sub>2</sub>O<sub>3</sub> in both heating behavior and electrical permittivity. The microwave absorption of Al<sub>4</sub>SiC<sub>4</sub> powders increases with their grain size, 1-2 mm particles powders indicates higher temperature than 3 μm in their microwave heating.
Other Link： https://ci.nii.ac.jp/naid/130007762488
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Oxidation Resistance and Bending Strength at High Temperatures of Ni/(ZrO2+Al2O3) Hybrid Materials
Hai Vu Pham,Makoto Nanko,Wataru Nakao
Materials Science Forum 922 104 - 109 2018.5 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Al4SiC4における自己治癒エージェントとしての有用性
木村奈津子, 中尾航
耐火物 70 ( 5 ) 203 - 208 2018.5
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
木村奈津子, 中尾航, “Al4SiC4における自己治癒エージェントとしての有用性”, 耐火物, 70 (2018) 203-208
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Finite element analysis of fracture statistics of ceramics: Effects of grain size and pore size distributions
Shingo Ozaki,Yuya Aoki,Toshio Osada,Kyohei Takeo,Wataru Nakao
Journal of the American Ceramic Society 101 ( 7 ) 2018.2 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Swelling response behavior of palladium during hydrogen absorption and discharge
Goto, Kenta & Hirata, Tomoyuki & Yamamoto, Isao & Nakao, Wataru
International Journal of Hydrogen Energy 43 ( 10 ) 2018 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Scatter prediction and size effect of ceramics strength by finite element analysis
TAKEO Kyohei, AOKI Yuya, OSADA Toshio, NAKAO Wataru, OZAKI Shingo
The Proceedings of Mechanical Engineering Congress, Japan 2018 ( 0 ) 2018
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japan Society of Mechanical Engineers Joint Work
<p>A novel numerical simulation method based on finite element analysis (FEA), which can evaluate the fracture probability caused by the characteristics of flaw distribution, is considered an effective tool to facilitate and increase the use of ceramics in components and members. In this study, we propose an FEA methodology to predict the scatter of ceramic strength. And the influence of effective volume can be expressed by proposed FEA methodology. First, we obtained microscopic tissue information from ceramics images and transformed them into fracture mechanics models, we numerically create a Weibull distribution based on multiple FEA results of a three-point bending test. Its validity is confirmed by a quantitative comparison with the actual test results. Next, by analyzing with different test specimens and test method and creating a Weibull distribution, it was shown that as the effective volume becomes larger, the strength decreases and the variation becomes smaller. In this way, the relationship between breaking strength and effective volume could be evaluated.</p>
Other Link： https://ci.nii.ac.jp/naid/130007619917
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Development of Smart Sensing Devices Based on Superior Properties of New FeCo Magnetostrictive Alloy
FURUYA Yasubumi, YAmazaki Takahiro, NAKAO Wataru
The Proceedings of Mechanical Engineering Congress, Japan 2018 ( 0 ) 2018
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japan Society of Mechanical Engineers Joint Work
<p>Based on the high performance of newly developed magnetostrictive FeCo71at% alloy (2011), we have developed two types of smart stress sensor devices, i.e. 1) stress/strain sensor for the machinery and infrastructure by measuring Barkhausen noise using FeCo fine wire, and 2) torque-sensor by measuring the leakage magnetic flux from the edge of magnetostrictive FeCo ring attached on the rotational shaft. The developed torque-sensor unit was applied to electric motor assisted system of spin-bike. These sensor application technologies will be enhanced by combining IoT wireless sensor net-work for Industry 4.0 or Society 5.0 in the near future.</p>
Other Link： https://ci.nii.ac.jp/naid/130007619461
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Special Issue on Growth of Ecomaterials as a Key to Eco-Society VI PREFACE
Umezawa Osamu, Shinohara Yoshikazu, Nakao Wataru
MATERIALS TRANSACTIONS 59 ( 8 ) 1215 - 1215 2018
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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A Novel Design Approach for Self-Crack-Healing Structural Ceramics with 3D Networks of Healing Activator
Toshio Osada,Kiichi Kamoda,Masanori Mitome,Toru Hara,Taichi Abe,Yuki Tamagawa,Wataru Nakao,Takahito … Show more authors
Toshio Osada,Kiichi Kamoda,Masanori Mitome,Toru Hara,Taichi Abe,Yuki Tamagawa,Wataru Nakao,Takahito Ohmura Hide authors
Scientific Reports 7 2017.12 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Numerical study on crack bifurcation of self-healing fiber-reinforced ceramic matrix composite
Yoshitomo OBA, Kyohei TAKEO, Wataru NAKAO, Shingo OZAKI
Mechanical Engineering Journal 4 ( 5 ) 16 - 00705 2017.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：JSME Joint Work
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Self-Healing of Ni/Mullite Hybrid Materials via High-Temperature Oxidatio
Hai Vu Pham, Makoto Nanko, Wataru Nakao
Materials Transactions 58 ( 7 ) 1081 - 1088 2017.6 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Journal of the Japan Institute of Metals and Materials Joint Work
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Strength recovery and crack-filling behavior of Alumina TiC self-healing ceramics
S Yoshioka, W Nakao
Advances in High Temperature Ceramic Matrix Composites and Materials for Sustainable Development 243 - 251 2017.6
Language：English Publishing type：Research paper (international conference proceedings) Publisher：Wiley-American Ceramic Society Joint Work
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Effect of diffusion coefficient variation on interrelation between hydrogen diffusion and induced internal stress in hydrogen storage alloys
KentaGoto,Shingo Ozaki,Wataru Nakao
Journal of Alloys and Compounds 691 ( 15 ) 705 - 712 2017.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Joint Work
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Effect of diffusion coefficient variation on interrelation between hydrogen diffusion and induced internal stress in hydrogen storage alloys
Kenta Goto, Shingo Ozaki, Wataru Nakao
Journal of Alloys and Compounds 691 705 - 712 2017.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Joint Work
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Finite element analysis of the damage and healing behavior of self-healing ceramic materials
Shingo Ozaki, Toshio Osada, Wataru Nakao
International Journal of Solids and Structures 100-101 307 - 318 2016.12 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：PERGAMON-ELSEVIER SCIENCE LTD Joint Work
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On the use of TiC as high-temperature healing particles in alumina based composites
Shunsuke Yoshioka, Linda Boatemaa, Sybrand van der Zwaag, Wataru Nakao, Willem G. Sloof
Journal of the European Ceramic Society 36 ( 16 ) 4155 - 4162 2016.12 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Joint Work
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High-temperature Bending Strength of Self-healing Ni/Al2O3 Nanocomposite
Hai Vu Pham, Makoto Nanko and Wataru Kakao
International J Applied Ceramic Technology 13 ( 5 ) 973 - 938 2016.9 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Micro-Structure Arrangement of Self-Healing Ceramics
Wataru NAKAO
Proceedings of PRICM9 2016.8 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Strength recovery and crack-filling behaviour of alumina/ TiC self-healing ceramics
Shunsuke YOSHIOKA, Wataru NAKAO
Proceedings of 9th International Conference on High Temperatrue Ceramics Matrix Composite 2016.6 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Mechniacal properties and original features of fiber-reinforced self-healing ceramics
Wataru NAKAO
Proceedings of 9th International Conference on High Temperatrue Ceramics Matrix Composite 2016.6 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Constitutive equation for isotropic damage-healing behavior in self-healing ceramic materials
Shingo Ozaki, Toshio Osada, Wataru Nakao
Proceedings of Plasticity 2016 2016.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Deformation Behavior of Capsule-Type Micro Actuator Using Paradium
K. Goto, T. Higuchi, O. Fuchiwaki, W. Nakao
ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems V001T01A017 - V001T01A017 2015.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Finite element analysis of damage-healring behaviour in self-healing ceramic materials
Shingo Ozaki, Yutaro Horie, Kosuke Hinata
International Center for Numerical Methods in Engineering 849 - 858 2015.4 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Motion and control of debris capture with super multi-link space manipulator
Yoshito Tsujimoto, Takehiro Higuchi, Wataru Nakao, Ohmi Fuchiwaki, Kenta Goto, Seiya Ueno
International Astronautical Federation, IAF 2109 - 2115 2014.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Design of capsule-type micro actuator utilizing hydrogen storage alloys by finite element analysis
Kenta GOTO, Ohmi FUCHIWAKI, Takehito HIGUCHI, Wataru NAKAO
Transaction of Materials Research Society Japan 39 ( 2 ) 145 - 152 2014.8 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：The Materials Research Society of Japan Joint Work
Other Link： https://www.jstage.jst.go.jp/article/tmrsj/39/2/39_145/_article
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Methodology for evaluating self-healing agent of structural ceramics
S. Yoshioka, W. Nakao
Journal of Intelligent Material Systems and Structures 26 ( 11 ) 1395 - 1403 2014.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：SAGE Publication Joint Work
Other Link： http://journals.sagepub.com/doi/10.1177/1045389X14544137
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Advanced ceramic composite using self-healing and fiber-reinforcement
Wataru NAKAO, Daisuke Maruoka, Makoto NANKO, Shingo OZAKI, Toshio OSADA
Mechanical Properties and Performance of Engineering Ceramics and Composites IX 187 - 193 2014.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Advanced Self-Healing Ceramics for Turbine Blade
Wataru Nakao
ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems V002T06A023 - V002T06A023 2013.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Performance of Capsule-type Micro Actuator using Hydrogen Storage Alloys
K. GOTO, T. Higuchi, O. Fuchiwaki, W. Nakao
ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems V002T02A002 2013.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Publisher：AMER SOC MECHANICAL ENGINEERS Joint Work
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Functionally Graded Ceramics Formed by Electron Beam Irradiation
Wataru NAKAO
The 8th Pacific rim international congress on advanced materials and processing 2261 - 2266 2013.8
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Increasing the reliability of ceramics component using self-crack-healing
K. Ando,W. Nakao
Proceedings of the 4th International Conference on Self-Healing Material 544 - 554 2013.6
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Self-healing behavior of Fiber-reinforced Self-healing Ceramics
S. Sugiyama, W. Nakao
Proceedings of the 4th International Conference on Self-Healing Material 560 - 563 2013.6
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Methodology to evaluate availability of self-healing agent for structural ceramics
S. Yoshioka, W. Nakao
Proceedings of the 4th International Conference on Self-Healing Material 274 - 277 2013.6
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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K. Ando, K. Takahashi, W. Nakao, T. Osada, K. Iwanaka
Journal of Powder Technology 2013 937312 2013.3 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
Other Link： https://www.hindawi.com/archive/2013/937312/
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Advanced Fiber reinforced Ceramics having self-healing function
Wataru Nakao
Proceedings of ASMP2012 2012.8 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Enhancement of self-healing ability in oxidation induced self-healing ceramic by modifying the healing agent
W Nakao, S Abe
Smart materials and Structures 21 ( 2 ) 25002 2012.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：IOP PUBLISHING LTD Joint Work
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Advanced Self-healing Agent for Next Generation Self-healing Ceramics
W Nakao, Y Iida
Proceedings of ICM&P2011 2011.6 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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ADVANCED HEALING ARGENTS FOR SELF-HEALING CERAMICS
W Nakao, Y Iida
Abstract book of 3rd International Conference on Self Healing Materials 2011.6 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Developmant of third Generation Self-healing ceramics
Wataru Nakao
Proceedings of ICM&P2011 2011.6 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Strengthening ceramics surface by crack-healing and low energy electron beam irradiation
W. Nakao, Y. Chiba, K. Iwata, K. Ando, Y. Nishi
International Journal of the Applied Ceramics Technology 8 ( 2 ) 383 - 389 2011.2 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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2nd step approach for self-healing ceramics
Wataru Nakao
Materials Science Forum 2133 - 37 2011.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
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POTENTIAL USE OF CRACK-HEALING TO IMPROVE THERMAL SHOCK RESISTANCE OF CERAMIC COMPONENTS
Wataru Nakao
Proceedings of the 35th International Conference on Advanced Ceramics and Composites CD - ROM 2011.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Self-healing in ceramic based composites
Wataru Nakao
Proceedings of the ASME 2009 Conference on Smart Materials, Adaptive Structure and Intelligent Systems 2010.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Improvement on Thermal Shock Resistance of Ceramics Component By Using Self-Healing
Wataru Nakao
Proceedings of the ASME 2010 Conference on Smart Materials, Adaptive Structure and Intelligent Systems 2010.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Improvement on Thermal Shock Resistance of Ceramics Component By Using Self-Healing
Wataru Nakao
ASME 2010 Conference on Smart Materials, Adaptive Structure and Intelligent Systems 33 - 38 2010.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Optimal SiC particle size for self-healing in alumina-SiC composite
Wataru Nakao
HTCMC7 CD - ROM 2010.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Kinetics of Self-Crack-Healing of Alumina/ Silicon Carbide Composite Including Oxygen Partial Pressure Effects
T. Osada, W. Nakao, K. Takahashi, and K. Ando
Journal of the American Ceramics Society 92 ( 4 ) 864 - 869 2009.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：WILEY Joint Work
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高強度鋼の疲労限度に及ぼす硬さと残留応力の影響
M. Koshimune, K. Matsui, K. Takahashi, W. Nakao, K. Ando
ばね論文集 54 19 - 26 2009.4 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Self-healing Behavior under Combustion Gas Atmosphere
T. Osada, W. Nakao, K. Takahashi, K. Ando and S. Saito
Ceramic Engineering and Science Proceedings 30 ( 2 ) 155 - 161 2009.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Crack Healing of Machining Cracks Introduced by Wheel Grinding and Resultant High-Temperature Mechanical Properties in a Si3N4/SiC Composite
Jung, Young-Soon; Nakao, Wataru; Takahashi, Koji; Ando, Kotoji; Saito, Shinji
J. Am. Ceram. Soc. 92 ( 1 ) 167 - 173 2009.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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SiC NANOMETER SIZING EFFECT ON SELF HEALING ABILITY OF STRUCTURAL CERAMICS
W. Nakao, S. Abe and K. Ando
Ceramic Engineering and Science Proceedings 30 ( 2 ) 137 - 142 2009.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Strengthening ceramics surface by crack-healing and low energy electron beam irradiation
Nakao, Wataru; Chiba, Yohei; Iwata, Keisuke; Nishi, Yoshitake; Ando, Kotoji
International Journal of the Applied Ceramics in press 2009 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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低酸素分圧下におけるSi3N4/SiC複合材のき裂治癒挙動
鄭永順、高橋宏治、安藤柱、斉藤慎二
材料 57 ( 11 ) 1132 - 1137 2008.11 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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希薄酸素雰囲気におけるSi3N4/SiC複合材のき裂治癒挙動
Y.S. Jung, W. Nakao, K. Takahashi, K. Ando and S. Saito
材料 57 ( 11 ) 1132 - 1137 2008.11 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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残留オーステナイトの相変態が及ぼす残留応力の影響
W. Nakao, K. Koshimune, K. Matsui, and K. Ando
ばね論文集 53 9 - 12 2008.4 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Self-healing of machined cracks by wheel grinding and resultant high-temperature mechanical properties in Si3N4/ SiC composite ceramic
Y.S. Jung, W. Nakao, K. Takahashi, K. Ando and S. Saito
Peoceedings of ICCES08 CD - ROM 2008.3 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Enhancement of In-Situ Self-Crack-Healing Efficient Temperature Region by SiC Nano-Sizing
Nakao, Wataru; Tsutagawa, Yasuyuki; Ando, Kotoji
Journal of Intelligent Material Systems and Structures 19 ( 3 ) 407 - 410 2008.3 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Effect of difference in Crack-healing ability on fatigue behavior of Alumina/SiC composites
R. Sugiyama, K. Yamane, W. Nakao, K. Takahashi, K. Ando
Journal of Intelligent Material Systems and Structures 19 ( 3 ) 411 - 415 2008.3 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Healing Behavior of Machining Cracks in Oxide-based Composite containg SiC particles
T. Osada, W. Nakao, K. Takahashi, K. Ando, S. Saito
Corrosion, Wear, Fatigue, and Reliability of Ceramics 347 45 - 52 2008.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Crack-Healing Behaviour and Resultant High Temperature Fatigue Strength of Machined Si3N4/SiC Composite Ceramic
Jung, Y. -S.; Guo, Y.; Nakao, W.; Takahashi, K.; Ando, K.; Saito, S
Fatigue and Fracture of Engineering Materials and Structures 31 ( 1 ) 2 - 11 2008.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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New Ceramics's Surface reinforcing Treatment Using a Combination of Crack-Healing and Electron Beam Irradiation
W. Nakao, Y. Chiba, K. Ando, K. Iwata, Y. Nishi
Corrosion, Wear, Fatigue, and Reliability of Ceramics 347 75 - 80 2008.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Strength recovery of machined Al2O3/SiC composite ceramics by crack-healing
Ono, M; Nakao, W; Takahashi, K; Ando, K
Fatigue and Fracture of Engineering Materials and Structures 30 ( 12 ) 1140 - 1148 2007.12 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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き裂治癒と保証試験による構造用セラミックスの信頼性保証－応力集中部材への適用と保証応力の温度依存性－
M. Ono, W. Nakao, K. Takahashi and K. Ando
日本セラミックス協会誌 115 ( 12 ) 967 - 973 2007.12 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
Crack-Healing Behavior of Mullite/SiC Multi-Composite and Resultant Fatigue Strength
K. Takahashi, K. Uchiide, Y. Kimura, W. Nakao, and K. Ando
Proceedings of JISSE-10 CD - ROM 2007.11 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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High Efficient Machining of Alumina/SiC Composites by Using Crack-Healing
T. Osada, K. Ando, W. Nakao, K. Takahashi, and S. Saito
Proceedings of JISSE-10 CD - ROM 2007.11 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Crack-Healing Behavior and Resultant High-Temperature Strength of Machined Si3N4/ SiC Composites Ceramics
Y.S. Jung, K. Ando, K. Takahashi, W. Nakao, and S. Saito
Proceedings of JISSE-10 CD - ROM 2007.11 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
The Through Life Reliability Maintaining of Ceramic Component Using Crack-Healing and a Proof-Test
M. Ono, W. Nakao, K. Takahashi, K. Ando
Proceedings of JISSE-10 CD - ROM 2007.11 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Enhancement of Self- Crack-Healing Ability in Structural Ceramics by SiC Nano-Sizing
Wataru Nakao and Kotoji Ando
Proceedings of JISSE-10 CD - ROM 2007.10 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
High Temperature Fatigue Strength of Heavily Machined and Crack-Healed Alumina
T. Osada, K. Takahashi, K. Ando, S. Saito
Journal of the Engineering Integrity Society 22 ( 8 ) 4 - 10 2007.8 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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High Temperature Fatigue Strength of Heavily Machined and Crack-Healed Alumina
T. Osada, W. Nakao, K. Takahashi, K. Ando and S. Saito
Journal of the Engineering Integrity Society 22 ( 8 ) 4 - 10 2007.8 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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A new methodology to guarantee the structural integrity of Al2O3/SiC composite using crack healing and a proof test
Ono, M; Nakao, W; Takahashi, K; Nakatani, M; Ando, K
Fatigue Fract. Engng. Mater. Struct 30 ( 7 ) 599 - 607 2007.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Threshold Stress for Crack-Healing of Mullite Reinforced by SiC whiskers and SiC particles and Resultant Fatigue Strength at the Healing Temperature
K. Takahashi, K. Uchiide, Y. Kimura , W. Nakao, K. Ando and M. Yokouchi
Journal of the American Ceramics Society 90 ( 7 ) 2159 - 2164 2007.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Strength recovery behavior of machined Al2O3/SiC nano-composite ceramics by crack-healing
T. Osada, W. Nakao, K. Takahashi, K. Ando and S. Saito
Journal of the European Ceramics Society 27 ( 15 ) 3261 - 3267 2007.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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強加工されたSi3N4/SiC複合材のき裂治癒による強度回復
S.Y. Jung, W. Nakao, K. Takahashi, K. Ando and S. Saito
ばね論文集 52 21 - 26 2007.6 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
Strength Recovery Behavior of Machined Alumina/ SiC Whisker Composite
Journal of the Ceramics Society Japan 115 ( 4 ) 278 - 284 2007.4 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
Strength Recovery of Machined Al2O3/SiC Particle Composite Ceramics
M. Ono, W. Nakao, K. Takahashi, K. Ando, and S. Saito
Proceedings of First International Conference on Self Healing Materials CD - ROM 2007.4 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Threshold stress during crack-healing treatment of structural ceramics having the crack-healing ability
Nakao, Wataru; Takahashi, Koji; Ando, Kotoji
Materials Letters 61 2711 - 2713 2007.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Strength recovery behavior of machined Al2O3/SiC nano-composite ceramics by crack-healing
Osada, Toshio; Nakao, Wataru; Takahashi, Koji; Ando, Kotoji; Saito, Shinji
Journal of the European Ceramics Society 27 ( 4 ) 3261 - 3267 2007.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Crack-Healing Behavior of Mullite/SiC Multi-Composite under Stress
K. Takahashi, K. Uchiide, W. Nakao, and K. Ando
Proceedings of First International Conference on Self Healing Materials CD - ROM 2007.4 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
A New Methodology to Guarantee the Structural Integrity of Ceramics Components Using Self-Crack-Healing and a Proof-Test
K. Ando, M. Ono, W. Nakao, K. Takahashi, and M. Nakatani
Proceedings of First International Conference on Self Healing Materials CD - ROM 2007.4 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Threshold stress during crack-healing treatment of structural ceramics having the crack-healing ability
W. Nakao, K. Takahashi and K. Ando
Materials Letters 61 ( 4 ) 2711 - 2713 2007.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Self-Healing of Heavily Machined Cracks in Si3N4/SiC and Resultant High-Temperature Fatigue Strength
W. Nakao, Y. S. Jung, K. Takahashi, K. Ando, S. Saito
Proceedings of First International Conference on Self Healing Materials CD - ROM 2007.4 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Effect of SiC Nano Sizing on Self- -Crack- Healing During Service
Wataru Nakao*, Yasuyuki Tsutagawa**, Koji Takahashi* and Kotoji Ando*
Proceedings of First International Conference on Self Healing Materials CD - ROM 2007.4 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
き裂治癒によるアルミナ/炭化ケイ素ウィスカー機械加工材の強度回復挙動
T. Osada, W. Nakao, K. Takahashi, K. Ando and S. Saito
日本セラミックス協会誌 115 ( 4 ) 278 - 284 2007.4 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
Fatigue Strength of Heavily Machined and Crack-Healed Si3N4 from 300 K to 1673 K
Y.S. Jung, K. Ando, K. Takahashi, W. Nakao, and S. Saito
Proccedings of Fatigue 2007 CD - ROM 2007.3 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
A Methodology to Increase Fatigue Limit and Its Application to Gears, Springs, And Bellows
K. Ando, K. Takahashi, and W. Nakao
Proccedings of Fatigue 2007 CD - ROM 2007.3 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
High Temperature Fracture Behavior of Crack-Healed Mullite/ SiC Whisker/ SiC Particle Multi-Composite
Wataru Nakao, Jun Nakamura, Masahiro Yokouchi, Koji Takahashi and Kotoji Ando
Proceedings of Fatigue 2007 CD - ROM 2007.3 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Increase of Structural Integrity Machined Alumina/ SiC using Crack-Healing
T. Osada, K. Ando, W. Nakao, K. Takahashi, and S. Saito
Proccedings of Fatigue 2007 CD - ROM 2007.3 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
The Influence of Vacuum Carbonitriding on The Fatigue Resistance of Gears
Masayuki Koshimune, Katsuyuki Matsui, Wataru Nakao and Kotoji Ando
Proceedings of Fatigue 2007 CD - ROM 2007.3 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Self-Crack-Healing Ability of Alumina/ SiC Nanocomposite Fabricated By Self- Propagating High Temperature Synthesis
Wataru Nakao, Yasuyuki Tsutagawa, Koji Takahashi, Kotoji Ando
Mechanical Properties and Performance of Engineering Ceramics and Composites III 443 - 448 2007.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Strength Recovery Behavior of Machined Alumina by Crack Healing
K. Ando, K. Takahashi, W. Nakao, T. Osada
Mechanical Properties and Performance of Engineering Ceramics and Composites III 399 - 409 2007.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Through-Life Reliability Management of Structural Ceramics Component Using Crack-Healling and Proof-Test
K. Ando, K. Takahashi, W. Nakao, M. Ono
Proceedings of the 31th International Conference on Advanced Ceramics and Composites CD - ROM 2007.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
High Efficiency Machining for Alumina Ceramics with Crack-Healing Treatment
T. Osada, K. Ando, W. Nakao, K. Takahashi, S. Saito
Proceedings of International Joint Conference of INABIO/SMEBA 2006 CD - ROM 2006.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
A New Methodology to Guarantee the Structural Integrity of Al2O3/SiC Composite Using Crack-Healing and a Proof Test
K. Ando, M. Ono, W. Nakao, K. Takahashi, M. Nakatani
Proceedings of International Joint Conference of INABIO/SMEBA 2006 CD - ROM 2006.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Effect of Difference in Crack-Healing Ability on Fatigue Behavior of Alumina/ Silicon Carbide Composites
R. Sugiyama, K. Yamane, W. Nakao, K. Takahashi, K. Ando
Proceedings of International Joint Conference of INABIO/SMEBA 2006 CD - ROM 2006.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Threshold Stress for Crack-Healing of Mullite/SiC Multi-Composite and the Resultant Fatigue Strength at the Healing Temperature
Y. Kimura, K. Uchiide, W. Nakao, K. Takahashi, K. Ando
Proceedings of International Joint Conference of INABIO/SMEBA 2006 CD - ROM 2006.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Crack-Healing Behavior and Resultant High-Temperature Strength of Machined Si3N4/ SiC Nano-Composites
Y.S. Jung, W. Nakao, K. Takahashi, K. Ando, and S. Saito
Proceedings of International Joint Conference of INABIO/SMEBA 2006 CD - ROM 2006.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
(Crack-healing + Proof test): Methodology to guarantee the reliability of a ceramics
M. Ono, W. Nakao, K. Takahashi, K. Ando, M. Nakatani
Proceedings of the 16th European Conference of Fracture CD - ROM 2006.7 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Strength Recovery of Machined Alumina by Self Crack Healing
K. Ando, T. Osada, W. Nakao, K. Takahashi, and S. Saito
Fracture of Nano and Engineering Materials and Structures 1051 - 1052 2006.7 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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き裂治癒したムライト/炭化ケイ素マルチ複合材の静疲労限度
W. Nakao, J. Nakamura, M. Yokouchi, K. Takahashi, K. Ando
ばね論文集 51 20 - 26 2006.6 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
Mullite Based Ceramic Spring with Excellent Self-Crack-Healing Ability
W. Nakao, K. Takahashi, K. Ando
Proceedings of Japan-France Joint Seminar on Intelligent Materials and Systems 2006 CD - ROM 2006.6 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Thresshold Stresses for Crack-Healing of Mullite Reinforced by SiC whiskers and SiC Particles
K. Uchiide, Y. Kimura, W. Nakao, K. Takahashi, and K. Ando
Proceedings of 1st International Congress on Ceramics CD - ROM 2006.5 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Static Fatigue Limit of Crack-Healed Mullite/ SiC Multi-Composite
51 21 - 26 2006.4 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
Self-Crack-Healing Behavior of Mullite/SiC Particle/SiC Whisker Multi-Composites And Potential Use for Ceramic Springs
Nakao, W; Mori, S; Nakamura, J; Takahashi, K; Ando, K; Yokouchi, M
Journal of the American Ceramics Society 89 ( 4 ) 1352 - 1357 2006.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：BLACKWELL PUBLISHING Joint Work
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A methodology to increase strength and guarantee reliablity of a Al2O3/ SiC composite ceramics component by crack-healing and proof testing
journal of the high pressure institute 44 ( 2 ) 80 - 89 2006.2 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
A new methodology to guarantee the structural integrity of ceramics components
K. Ando, K. Takahashi, K. Furusawa, W. Nakao
Journal of Advanced Science 18 ( 1 ) 10 - 15 2006.2 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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き裂治癒と保証試験によるアルミナ/炭化ケイ素複合セラミックスの強度向上と信頼性向上
M. Ono, W. Nakao, K. Takahashi, K. Ando and M. Nakatani
圧力技術 44 ( 2 ) 80 - 90 2006.2 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
High Temperature Fatigue Behavior of Mullite/ SiC Multi- Composite Crack- Healed
Wataru Nakao, Jun Nakamura, Koji Takahashi and Kotoji Ando
Mechanical Properties and Performance of Engineering Ceramics II 11 - 17 2006.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Improvement in Working Limit For Ceramic Components by Using Crack-Heal
Wataru Nakao, Toshi Osada, Masato Ono, Koji Takahashi and Kotoji Ando
Mechanical Properties and Performance of Engineering Ceramics II 93 - 99 2006.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Gibbs Energy Change of Carbothermal Nitridation Reaction of γ-AlON and Its Thermodynamic Stability
Wataru Nakao,Hiroyuki Fukuyama
Journal of the American Ceramics Society 88 ( 11 ) 3170 - 3176 2005.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Critical crack-healing condition for SiC whisker reinforced alumina under stress
Wataru Nakao, Masato Ono, Sang-Kee Lee, Koji Takahashi, Kotoji Ando
J. Eur. Ceram. Soc. 25 ( 16 ) 3649 - 3655 2005.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Joint Work
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Gibbs Energy Change of Carbothermal Nitridation Reaction of g-ALON and Its Thermodynamic Stability
W. Nakao and H. Fukuyama
Journal of the American Ceramics Society 88 ( 11 ) 3170 - 3176 2005.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Effect of SiC Shape on The Crack-Healing Mechanism of Alumina/SiC Composite
Wataru Nakao, Toshio Osada, Kazuya Yamane, Masahiro Yokouchi1, Koji Takahashi and Kotoji Ando
Materials Research Society Symposium Proceedings Vol 888, Materials and Devices for Smart Systems II 61 - 66 2005.11 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Increase of Structural Integrity Machined Alumina/ SiC using Crack-Healing
K. Ando, T. Osada, W. Nakao, K. Takahashi, and S. Saito
CERAMIC TRANSACTIONS 192 155 - 159 2005.9 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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(Crack-healing + Proof test): a new methodology to guarantee the reliability of a ceramics components
M. Ono, W. Nakao, K. Takahashi, K. Ando, M. Nakatani
CERAMIC TRANSACTIONS 192 213 - 216 2005.9 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Crack-Healing Mechanism by Alumina/ SiC particles /SiC whiskers Multi-composite
J. Japan Inst.Metals 69 ( 8 ) 2005.8 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
アルミナ/炭化ケイ素粒子/炭化ケイ素ウィスカーマルチコンポジッドのき裂治癒挙動
W. Nakao, T. Osada, K. Yamane, K. Takahashi and K. Ando
Journal of the Japan Institute of Metal 69 ( 8 ) 663 - 666 2005.8 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Critical crack-healing condition under stress of SiC whisker reinforced alumina
W. Nakao, M. Yokouchi, S. K. Lee, K. Takahashi and K. Ando
Journal of the European Ceramics Society 25 ( 16 ) 3649 - 3655 2005.8 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Crack-healing behaviour of mullite/SiC/Y2O3 composites and its application to the highest structural integrity of machined components
Sang-Kee Lee, Masato Ono, Wataru Nakao, Koji Takahashi, Kotoji Ando
Journal of the European Ceramics Society 25 ( 7 ) 3495 - 3502 2005.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Joint Work
-
Crack-healing behaviour of mullite/ SiC/ Y2O3 composites and its application to the highest structure integrity of machined components
S. K. Lee, M. Ono, W. Nakao, K. Takahashi and K. Ando
Journal of the European Ceramics Society 25 ( 15 ) 3495 - 3502 2005.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
(Crack-healing + Proof test): a new methodology to guarantee the reliability of a ceramics components
M. Ono, W. Nakao, K. Takahashi, K. Ando, M. Nakatani
Proccedings of M&P2005 CD - ROM 2005.6 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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[Crack-Healing+Proof test+in-situ-Crack-Healing]"A New Methodology to Guarantee the Structural Integrity of Ceramic Components"
K. Ando, K. Takahashi, and W. Nakao
Proccedings of M&P2005 CD - ROM 2005.6 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Crack-healing Ability and Behavior of Alumina Strengthened by SiC Particles and SiC Whiskers
T. Osada, K. Yamane, W. Nakao, K. Takahashi and K. Ando
Proccedings of M&P2005 CD - ROM 2005.6 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
ムライト/SiCウィスカー複合セラミックスのき裂治癒挙動・高温強度および破壊靱性
M. Ono, W. Ishida, W. Nakao, K. Ando, S. Mori and M. Yokouchi
材料 54 ( 2 ) 207 - 214 2005.2 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Potential Use of Mullite-SiC Whiskers-SiC Particles Multi-Composite As High Temperature Springs
Wataru Nakao, Koji Takahashi and Kotoji Ando Masahiro Yokouchi
Mechanical Properties and Performance of Engineering Ceramics and Composites 286 381 - 387 2005.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Threshold Stress During Crack-Healing Treatment of Structural Ceramics Having The Crack-Healing Ability
Wataru Nakao, Koji Takahashi and Kotoji Ando
Ceramic Engineering and Science Proceedings 26 ( 2 ) 93 - 98 2005.1 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Crack-Healing Behavior of Mullite/SiC Particle/SiC whisker Multi-Composite and Mechanical Properties of the Multi-Composite
Wataru NAKAO, Sang-Kee LEE, Masahiro YOKOUCHI, Koji TAKAHASHI and Kotoji ANDO
Materials Science Forum 475 2071 - 2074 2004.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Critical Conditions for crack-healing of structural ceramics under constant or cyclic stress
M. Ono, W. Nakao, K. Takahashi, K. Ando
Key Engineering Materials 317 461 - 464 2004.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Self-Crack-Healing Behavior of Mullite/SiC Particles/ SiC Whiskers Multi-Composite And Mechanical Properties of The Multi- Composite Crack-Healed
W. NAKAO, S.K. LEE, M. YOKOUCHI, K. TAKAHASHI and K. ANDO
Proccedings of the 5th International Conference on High Temperature Ceramics Matrix Composite CD - ROM 2004.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
High Temperature Fatigue Strength of Crack-Healed Al2O3/SiC Whiskers
S.K. LEE, M. YOKOUCHI, W. Nakao, K. TAKAHASHI and K. ANDO
Proccedings of the 5th International Conference on High Temperature Ceramics Matrix Composite 335 - 340 2004.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
SELF-CRACK-HEALING BEHAVIOR OF MULLITE/SiC PARTICLE/SiC WHISKER MULTI-COMPOSITE
Wataru Nakao, Koji Takahashi and Kotoji Ando
Proceedings of JSSUME 2004 330 - 334 2004.8 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Critical Conditions for crack-healing of structural ceramics under constant or cyclic stress
M. Ono, W. Nakao, K. Takahashi, K. Ando
Proceedings of JSSUME 2004 192 - 194 2004.8 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
Fatigue Strength of Crack-Healed Al2O3/SiC Whiskers Composite
S. K. Lee, M. Yokouchi, W. Nakao, K. Takahashi, and K. Ando
Proceedings of JSSUME 2004 195 - 198 2004.8 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
-
SiCウィスカー強化アルミナのき裂治癒挙動・高温強度および破壊靱性値
安藤柱，横内正洋，李相起，高橋宏治，中尾航，末永博義
材料 53 ( 6 ) 599 - 606 2004.6 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
SiCウィスカー強化アルミナのき裂治癒挙動・高温強度および破壊靱性
K. Ando, M. Yokouchi, S.K. Lee, K. Takahashi, W. Nakao and H. Suenaga
材料 53 ( 6 ) 599 - 606 2004.6 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
-
Self-crack-healing behavior and fracture strength of Al2O3/SiC composites at the high temperature
K. Ando, S. Kodama, M. Yokouchi, S.K. Lee, W. Nakao, K. Takahashi
Proceedings of ECF-15 CD - ROM 2004 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Single Crystalline AlN Film Formed by Direct Nitridation of Sapphire Using Aluminum Oxynitride Buffer
NAKAO Wataru,FUKUYAMA Hiroyuki
Journal of Crystal Growth 259 302 - 308 2003.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE BV Joint Work
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Single crystalline AlN film formed by direct nitridation of sapphire using aluminum oxynitride buffer
W. Nakao, H. Fukuyama
Journal of the Crystal Growth 259 ( 3 ) 302 - 308 2003.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Critical Crack Healing Condition under Stress and Subsequent Strength at the Healing Temperature
Wataru Nakao, Masato Ono, Masahiro Yokouchi*, Koji Takahashi and Kotoji Ando
TRANSACTIONS-MATERIALS RESEARCH SOCIETY OF JAPAN 29 3075 - 3078 2003.8 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Thermodynamic Stability of γ-Aluminum Oxynitride
Hiroyuki Fukuyama,Kazuhiro Nagata,Wataru Nakao
J. Electrochem. Soc 150 ( 2 ) J1 - J7 2003.2 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Thermodynamic stability of g-aluminum oxynitride
W. Nakao, H. Fukuyama, and K. Nagata
Journal of the Electrochemical Society 150 ( 2 ) J1 - J7 2003.2 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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AlN Films Epitaxialy Formed by Direct Nitridation of Sapphire using Aluminium Oxynitride as a buffer layer
W. Nakao, H. Fukuyama, and K. Nagata
Electrochemical Society Proceedings Volume 2002-3, State of the Art Program on Compound Semiconductors XXXVI and Wide Bandgap Semiconductors for Photonic and Electronic Devices and Sensors II 76 - 82 2002.5 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Thermodynamics for fabricating AlN/alon/sapphire Double epitaxial Layers as an Advanced Substrate for Blue/Ultraviolet Optical Devices
H. Fukuyama, W. Nakao and K. Nagata
Electrochemical Society Proceedings Volume 2002-3, State of the Art Program on Compound Semiconductors XXXVI and Wide Bandgap Semiconductors for Photonic and Electronic Devices and Sensors II 155 - 163 2002.5 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Gibbs Energy Change of Carbothermal Nitridation Reaction of Al2O3 to Form AlN and Reassessment of Thermochemical Properties of AlN
Hiroyuki Fukuyama,Kazuhiro Nagata,Wataru Nakao
J. Am. Ceram. Soc. 85 ( 4 ) 889 - 896 2002.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Gibbs energy change of carbothermal nitridation reaction of Al2O3 to form AlN and reassessment of thermodynamic properties of AlN
W. Nakao, H. Fukuyama, and K. Nagata
Journal of the American Ceramics Society 85 ( 3 ) 889 - 895 2002.3 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Potential Use of Aluminium Oxynitride as Advanced Refractories
H. Fukuyama, W. Nakao and K. Nagata
Proceedings of ICS 2001 623 - 632 2001 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Equillibrium N2-CO gas compositions coexisting with AlN-Al2O3-Graphite Measured by quadrupole Mass Spectrometry
H. Fukuyama, W. Nakao, K. Nagata
Proceedings of Metallugical Processing 83 - 89 2000 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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New synthetic method of forming aluminum oxynitride by plasma arc melting
H. Fukuyama, W. Nakao, M. Susa and K. Nagata
Journal of the American Ceramics Society 82 ( 6 ) 1381 - 1386 1999.6 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work