Abstract
Effect of a fluorinated oil on the growth kinetics of surface cracks was examined in a Si3N4 ceramic under cyclic loading condition. Fatigue crack growth in the oil was found to be faster than in humid air. Comparison of fatigue crack surfaces and profiles in the oil and air indicates that the oil has caused the dissolution of Y-containing grain boundary phase. The dissolution reduced the number of bridging grains behind the crack tip, resulting in a higher fatigue crack growth rate in the oil.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 625-633 |
| Number of pages | 9 |
| Journal | Ceramic Engineering and Science Proceedings |
| Volume | 15 |
| Issue number | 5 |
| State | Published - Sep 1994 |
| Event | Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B. Part 2 (of 2) - Cocoa Beach, FL, USA Duration: Jan 9 1993 → Jan 14 1993 |
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry