摘要
通过与钛合金/超高分子量聚乙烯摩擦副的对比,研究了DLC/UHMWPE摩擦副分别在干摩擦、生理盐水和Hank′s溶液润滑下的摩擦磨损特性。用二次离子质谱和声波反射划痕仪分别测定了DLC梯度薄膜的组分分布和附着强度,并用扫描电子显微镜观察试样表面形貌,探讨其磨损机理。结果表明:用PSII IBED法制备的DLC薄膜的组分由内向外呈梯度变化,膜的附着强度较高。DLC梯度薄膜是一种减摩耐磨材料,其摩擦系数随载荷的增大而减小。
Compared with the Ti6Al4V and UHMWPE tribocouples system, the friction and wear behaviour of diamondlike carbon (DLC) gradient film sliding against UHMWPE under dry friction and lubrication of 0.9%NaCl solution and Hank′s solution respectively were investigated. The distribution of carbon content and the adhesive strength of coatings were measured using second ion mass spectrum(SIMS) and sonicreflect scratch test,respectively.The morphologies of the worn specimens were studied utilizing scanning electric microscopy (SEM) and the wear mechanism was also analyzed. The results showed that the samples prepared using PSIIIBED were characterized by gradient distribution of composition and higher adhesive strength. Besides,DLC gradient film has the properties of low friction and wearresistance and the wear decreased with the increase of load value.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2003年第3期278-280,共3页
Journal of Functional Materials
基金
国家自然科学基金资助项目(39870232)
高等学校博士学得专项科研基金资助项目(2000061004)
清华大学摩擦学国家重点实验室资助项目
