In this study the combination effects of shot peening (SP) and crack-healing on the contact strength of ceramics were examined. Si3N4/SiC composite ceramics with high crack-healing ability were used and the specimens were subjected to shot peening with several peening pressures and shot diameters. Then, some specimens subjected to SP were heat-treated in air to heal surface cracks introduced by shot peening. Sphere indentation tests were carried out on the specimens and investigated the Weibull distribution of the contact strength. As a result, it is found that the combination of shot peening and crack-healing is effective to increase contact strength and decrease the scatter of the contact strength.
- Pressure Vessels and Piping Division
Improvement of Contact Strength of Si3N4/SiC by Combination of Shot Peening and Self-Crack Healing
- Views Icon Views
- Share Icon Share
- Search Site
Takahashi, K. "Improvement of Contact Strength of Si3N4/SiC by Combination of Shot Peening and Self-Crack Healing." Proceedings of the ASME 2011 Pressure Vessels and Piping Conference. Volume 6: Materials and Fabrication, Parts A and B. Baltimore, Maryland, USA. July 17–21, 2011. pp. 7-11. ASME. https://doi.org/10.1115/PVP2011-57323
Download citation file: