Elasticity and inelasticity of ceramic samples of graphitelike boron nitride |
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| Authors: | B K Kardashev Yu A Burenkov B I Smirnov V V Shpeizman V A Stepanov V M Chernov D Singh K C Goretta |
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| Institution: | (1) Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia;(2) Leipunskii Institute of Physics and Power Engineering, pl. Bondarenko 1, Obninsk, 249020, Russia;(3) Argonne National Laboratory, Argonne, Illinois 60439, USA |
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| Abstract: | This paper reports a study of the effect of temperature and strain amplitude on Young’s modulus and ultrasonic damping in ceramic samples of graphitelike boron nitride prepared in the RF and USA by different technologies and using various additions to improve the mechanical properties of the ceramic. It is shown that, in addition to the influence on the effective elasticity modulus, additions improve the sample microplasticity, which apparently increases the strength of the material. |
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