摘要
The β-Sialons are potential candidates for high temperature application because of their excellent comprehensive performances. However, there is little research about dry sliding wear behavior of β-Sialons at wide range temperature. This study aims at revealing the mechanisms of how temperature, microstructure and mechanical properties affect the tribological properties of such composites. Four kinds of β-Sialons are prepared and their wear properties are characterized from 25 to 800 °C. Results show that β-Sialons have a preferable tribological property at 25 °C, which is ascribed to its excellent mechanical properties. Whereas, with temperature increasing, the wear rate increases two orders of magnitudes compared to 25 °C, owing to the reduced hardness and increased thermal stress of the sample. At 800 °C, the wear rate of composites decreases with z values increasing, which is attributed to the tribo-chemical reaction and generate more Al2O3 in β-Sialons with higher z values during sliding process.
源语言 | 英语 |
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页(从-至) | 4505-4513 |
页数 | 9 |
期刊 | Journal of the European Ceramic Society |
卷 | 37 |
期 | 15 |
DOI | |
出版状态 | 已出版 - 12月 2017 |
已对外发布 | 是 |