2009 Fiscal Year Final Research Report
Improvement of contact strength of ceramics by self-crack healing
| Project/Area Number |
20760067
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Yokohama National University |
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Principal Investigator |
TAKAHASHI Koji Yokohama National University, 大学院・工学研究院, 准教授 (90334630)
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| Project Period (FY) |
2008 – 2009
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| Keywords | セラミックス / 自己き裂治癒 / 接触強度 / ワイブル分布 / 球圧子押込み試験 |
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| Research Abstract |
The effects of the crack-healing on the contact strength were investigated for Si3N4/SiC specimens subjected to various machining processes. The evaluation of contact strength was done by static sphere indentation test that used acoustic emission (AE) together. As a result, the contact strength of Si3N4/SiC was improved by crack-healing with a combination of rapping even for the material that had machining cracks induced by heavily machining processes.
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