摘要
以纳米碳管作为增强体制备了铜基复合材料，采用ＭＭ－２２０型环－块摩擦磨损试验机考察了该复合材料的滑动磨损行为，并观察分析了复合材料的组织结构、磨损表面形貌及磨屑组成．结果表明，其磨损过程存在跑合和稳态磨损２个阶段，在稳态磨损阶段主要发生氧化磨损，同时也存在磨粒磨损．工作环境影响复合材料的耐磨性．纳米碳管体积分数在１２％～１５％时，可以较好地发挥其润滑和阻止基体氧化的作用．
Carbon
nanotube was used as a reinforcement agent to prepare Cu based composite. The friction and
wear behaviors of the composite were examined on an MM 200 frction and wear tester at
ambient condition. The microstructure and worn surface morphology of the composite were
analyzed with scanning electron microscopy, and the composition of the wear debris was
determined with X ray diffraction. It was found that the wear process of the composite was
composed of running in and steady state wear. Oxidation wear was dominant and accompanied
with abrasive wear during the steady state wear. The friction and wear behaviors of the
composite were dependent on the testing conditions, and the optimal friction and wear
behaviors could be achieved at a carbon nanotube volume fraction of 12%￣15%.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
1999年第1期1-6,共6页
Tribology
基金
国家自然科学基金
浙江省自然科学基金
关键词
纳米碳管
铜基
复合材料
滑动磨损
耐磨性
carbon nanotube
Cu based composite
sliding wear
wear resistance
