C/SiC复合材料摩擦性能及储油性能分析

Analysis of lubricant retention property and tribological property of C/SiC composite material

复合材料因性能独特而备受关注,但其自身结构复杂且受到诸多因素的影响,因而对其摩擦学性能的研究仍有待进一步加强。为了对比不同摩擦配副对C/SiC复合材料摩擦性能及储油性能的影响,以C/SiC复合材料为研究对象,运用销盘摩擦学试验方法,研究了C/SiC复合材料与45#钢以及C/SiC复合材料与ZrO2材料摩擦配副的摩擦学性能,采用三维形貌仪等仪器对C/SiC复合材料摩擦后的表面进行表征分析,研究其摩擦后的表面质量及其储油性能。结果表明,C/SiC复合材料与45#钢磨损剧烈,摩擦后表面储油性能严重下降;其与ZrO2对磨则摩擦系数较低,磨损量较小,摩擦后的表面仍保持了较好的承载性能及储油性能,是一种良好的摩擦配副。研究结果为拓展C/SiC复合材料的应用及揭示其摩擦学特性提供了有力支撑。

Composite materials have attracted more and more attention because of their special properties.However,the tribological properties of the composite material still need further study because of their complex structure and many influencing factors.In order to compare the influence of friction pair on the tribological property and lubricant retention property of C/SiC composite material,the tribological properties of C/SiC composite material sliding against 45# steel and ZrO2 are studied based on pin on disc test method.The wear surface of C/SiC composite material is characterized by 3 Dprofiler.The lubricant retention property is investigated based on the 3 Dsurface topography.The result shows that C/SiC composite material wears heavily when sliding against 45# steel and the lubricant retention properties decreases dramatically.C/SiC composite material exhibits low friction coefficient and wear when sliding against ZrO2 material,and the wear surface has good load-carrying property and lubricant retention property,which indicates that C/SiC composite material and ZrO2 are good friction pair.The research result provides strong support to boarding the application and revealing the tribological properties of C/SiC composite material.