F-0531 マイクロインデンテーションにおける脆性材料の変形と破壊挙動(J17-4 マイクロトライボロジー&プロセッシング(4))(J17 マイクロトライボロジー&プロセッシング)

概要

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It would be significant to establish how to measure and evaluate mechanical properties of brittle materials such as Si mono-crystal, fine ceramics and glass, in order to know their machinability, wear properties, etc. In this paper, we tried to evaluate some mechanical properties of Si mono-crystal and glass by means of a load-displacement-type micro-hardness tester with spherical tip indenters, their radius being 20μm, 35μm and 55μm. In the micro-indentation tests, AE signal was detected at the same time for sensing fracture behavior. As a result, fracture behavior and mechanical properties of Si mono-crystal and the glass were able to be caught. Moreover, a possibility of the evaluation by the contact pressure was discussed.
一般社団法人日本機械学会の論文
2001-08-22