| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1474929 | Journal of the European Ceramic Society | 2010 | 5 Pages |
Abstract
Crack healing in liquid-phase-pressureless-sintered SiC–AlN composites was investigated by introducing cracks into specimens and subsequently heat-treating the specimens. It was observed that cracks were healed and the strength was recovered. Cracks were filled with silica or mullite produced by the oxidation of the composites. It was shown that the healing temperature could be fixed in the range 1100–1300 °C and that large cracks up to about 300 μm could be healed completely. Our results imply that a simple oxidation heat-treatment can improve the reliability of silicon carbide–aluminum nitride components.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Giuseppe Magnani, Leandro Beaulardi, Alida Brentari, Takehiro Toyoda, Koji Takahashi,