摘要
利用射频等离子体增强化学气相沉积(RF-PECVD)技术在超高分子量聚乙烯(UHMWPE)表面制备类金刚石(DLC)膜,用激光拉曼(Raman)光谱仪和扫描电子显微镜(SEM)分析了DLC膜的形貌及结构特征,纳米硬度法测定DLC膜的纳米硬度。并在UMT-Ⅱ型摩擦磨损试验机上评价了DLC膜在牛血清溶液润滑条件下的摩擦磨损性能。结果表明,UHMWPE表面制备的DLC膜具有典型类金刚石薄膜的Raman光谱特征,属含氢a-C:H膜。表面沉积DLC膜可有效提高UHMWPE的表面硬度,改善表面润湿性能。25%牛血清润滑条件下,DLC膜UHMWPE的摩擦因数有所升高,但磨损率则有明显下降。UHMWPE磨损表面存在严重的犁削磨损和塑性变形,DLC膜磨损表面主要以剥层磨损为主。
Diamond-like carbon(DLC)film was deposited on surface of ultra-high molecular weight polyethylene(UHMWPE)by radio-frequency plasma enhanced chemical vapor deposition(RF-PECVD).The surface morphology and micro-structure of the DLC film were characterized with Raman spectrometer and SEM.Naon-hardness was measured by nano-indenter tests.The friction and wear properties of DLC film were investigated on an UMT-Ⅱ friction and wear tester under bovine serum lubrication.The experimental results showed that DLC film...
出处
《中国表面工程》
EI
CAS
CSCD
北大核心
2010年第6期45-50,共6页
China Surface Engineering
基金
清华大学摩擦学国家重点实验室开放基金资助项目(SKLTKF08A01)
