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Measurement of High-Temperature Elastic Properties of Ceramics Using a Laser Ultrasonic Method |
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| Authors: | Takahiro Matsumoto Tetsuro Nose Yasuaki Nagata Katsuhiro Kawashima Tastuya Yamada Hidetoshi Nakano Satoshi Nagai |
| Affiliation: | Single Quantum Dot Project, ERATO Japan Science and Technology Corporation, Tsukuba 300–2635, Japan;Advanced Technology Research Laboratories, and Plant Engineering and Technology Center, Nippon Steel Corporation, Futtu–city, Chiba 293–8511, Japan;Tokyo Engineering University, Hachioji–city, Tokyo 192–0982, Japan;Japan Fine Ceramics Center, Nagoya 456–8587, Japan;National Research Laboratory of Metrology, Tsukuba 305–8563, Japan |
| Abstract: | Young's modulus and Poisson's ratio of SiC ceramics at temperatures >1400°C were obtained using a laser ultrasonics method that included a Fabry-Pérot interferometer (LUFP). At temperatures <1000°C, Young's modulus and Poisson's ratio measured using the LUFP method agreed well with those measured using standard contact methods, such as the resonance method and the ultrasonic pulse method. These results showed that the LUFP method is a powerful tool for measuring high-temperature elastic properties of advanced ceramics in a noncontact manner. |
| Keywords: | elastic materials/properties ultrasonics silicon carbide |