摘要
采用反应熔渗法(RMI)将不同密度的C/C坯体制备成C/C-SiC复合材料,利用化学气相沉积法(CVD)在C/C-SiC复合材料表面进行炭沉积形成热解炭涂层,选用HS-19A型肖氏硬度计测试其硬度,利用MM1000-II型摩擦磨损实验机测试摩擦性能,研究热解炭涂层对C/C-SiC复合材料孔隙率、硬度及摩擦性能的影响。结果表明:热解炭涂层可以有效地降低孔隙率,提高硬度,减小摩擦系数。
By reactive melt infiltration（RMI）,C/C-SiC composite materials were prepared from different densities of C/C composites.The pyrocarbon coating on C/C-SiC composite surface was formed by chemical vapor deposition（CVD）.HS-19A type hardness tester was used to test its hardness,and the friction performance was tested by MM1000-II friction and wear tester.The effects of the carbon coating on the porosity,the hardness and friction properties of C/C-SiC composites were investigated.The results indicate that the pyrocarbon coating can effectively reduce the porosity,improve the hardness and reduce the friction coefficient.
作者
雷玥
李瑞珍
解惠贞
Lei Yue,Li Ruizhen,Xie Huizhen(Xi＇an Aerospace Composites Research Institute, Xi＇an 71002)
出处
《航天制造技术》
2018年第1期27-30,共4页
Aerospace Manufacturing Technology
