宇航材料工艺2025，Vol.55Issue(2)：77-84,8.DOI:10.12044/j.issn.1007-2330.2025.02.010
起始温度对Cf/C-陶瓷摩擦副摩擦性能影响
Effect of Initial Temperature on the Tribological Property of Cf/C-Ceramics
魏金花 1胡志远 1康鹏飞 1王凯 1李军平1
作者信息
- 1. 航天材料及工艺研究所,先进功能复合材料技术重点实验室,北京 100076
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摘要
Abstract
Currently,there is limited research on the tribological properties of frictional pairs composed of Cf/C-ZrO2 and Cf/C-Si3N4,particularly regarding the influence of temperature on their friction behavior.Therefore,the effect of initial temperature on the tribological performance of these two pairs were investigated in this work.Friction tests were conducted using pin-on-disc configurations where Cf/C composites were paired with zirconia(ZrO2)and silicon nitride(Si 3 N 4),respectively.The variations in friction coefficient,wear loss,and friction interface morphology under initial temperatures ranging from 200℃ to 700℃ were systematically analyzed.The results indicate that below 400℃,the average friction coefficient of the Cf/C-ZrO2 pair is lower than that of the Cf/C-Si3N4 pair,with both pairs exhibiting mixed wear mechanisms dominated by abrasive wear and adhesive wear.Above 400℃,the average friction coefficient of the Cf/C-ZrO2 pair surpasses that of the Cf/C-Si3N4 pair,and the wear mechanism transitions to a combination of abrasive wear and oxidative wear.Under all tested temperatures,the wear rate of the ZrOz disc is consistently lower than that of the Si3N4 disc.As the initial temperature increases,the oxidative wear of the Cf/C pin intensifies,leading to a gradual rise in wear rate.When the initial temperature exceeds 800℃,the Cf/C composite fails to maintain its stable macroscopic woven structure,undergoing thermal oxidation and structural degradation.关键词
Cf/C复合材料/氧化锆/氮化硅/摩擦因数/磨损形式Key words
Cf/C composite/ZrO2/Si3N4/Coefficient of friction/Wear form分类
机械工程引用本文复制引用
魏金花,胡志远,康鹏飞,王凯,李军平..起始温度对Cf/C-陶瓷摩擦副摩擦性能影响[J].宇航材料工艺,2025,55(2):77-84,8.
