摘要
采用粉末冶金技术制备含石墨与MoS2的空间对接机构用铜基摩擦材料,研究石墨与MoS2的配比(石墨与MoS2的质量比)对材料的显微组织、物理性能和摩擦学性能的影响。结果表明:随着MoS2含量的增加(石墨含量相应地减少),材料的显微组织逐渐趋向均匀,其密度与表观硬度逐渐增加;当石墨与MoS2的质量比为4:8时,摩擦材料具有较高的摩擦因数、较高的摩擦因数稳定度和较小的磨损量,且大气与低真空中的摩擦因数相差较小;大气与低真空下的对比实验验证了材料具有良好的真空摩擦学性能。
The effects of proportion of graphite and MoS2 （mass ratio of graphite to MoS2） ingredients on the microstructure, physical and tribological performances of space docking Cu-based friction material made by powder metallurgy technology were investigated. The results indicate that the microstructure becomes more homogeneous, the apparent hardness and density of the material increase with the increase of MoS2 content （graphite content reduces relatively） obviously; when the mass ratio of graphite to MoS2 is 4：8, the material obtains excellent comprehensive properties such as high friction coefficient and stable coefficient of friction coefficient, and good wear-resistance; the contrast experiments in air and low vacuum denote that materials possess excellent tribologieal performances in vacuum. Key words： graphite; MoS2; powder metallurgy; space docking; friction material
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2012年第9期2539-2545,共7页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金资助项目(51175516
50875264)
湖南省杰出青年基金资助项目(10JJ1009)
上海市空间飞行器机构重点实验室开放课题资助项目(QT2010-081)
关键词
石墨
MOS2
粉末冶金
空间对接
摩擦材料
graphite
MoS2
powder metallurgy
space docking
friction material
