表面织构对HA/ZrO_2生物陶瓷涂层摩擦磨损性能影响  

Influence of surface textured tribological properties of HA/ZrO_2 bio-ceramic coating

作　　者：鲍雨梅[1] 金志伟 张志斌 陈贺 吴霄 

机构地区：[1]浙江工业大学特种装备制造与先进加工技术教育部重点实验室,浙江杭州310014

出　　处：《浙江工业大学学报》2018年第2期179-183,共5页Journal of Zhejiang University of Technology

基　　金：国家自然科学基金资助项目(51105339)

摘　　要：采用飞秒激光器在等离子喷涂HA/ZrO_2生物陶瓷涂层表面制备不同直径的凹坑型织构阵列;采用VW-6000高速摄影仪及超景深三维轮廓仪进行织构形貌的表征;在UMT-3多功能摩擦磨损试验机上采用往复运动形式测试涂层在牛血清润滑条件下的摩擦系数,通过测量涂层磨损后磨痕深度表征涂层磨损程度.结果表明:飞秒激光加工织构具有良好的表面形貌,一定参数下的织构涂层摩擦学性能较未织构涂层有所改善,其中凹坑直径为250μm织构涂层的摩擦系数值最低,且磨损量最小.Femtosecond laser is applied to prepare the surface texture dimple arrays with different diameter on plasma sprayed HA/ZrO_2 bio-ceramic coating.Textured morphology is characterized by VW-6000 high-speed camera and ultra-depth profile instrument.Friction coefficient is measured on the UMT-3 test machine by the reciprocating movement with the lubricant of bovine serum.The wear degree of coating is measured by wear depth.Results showed that the femtosecond laser processed texture has excellent surface appearance,the tribological properties of textured coatings under certain parameters are better than non-textured coating,the friction coefficient and wear depth of coating with dimple diameter250μm are the lowest.

关 键 词：表面织构 飞秒激光 摩擦磨损 生物陶瓷涂层 

分 类 号：TH117.1[机械工程—机械设计及理论]