【作者】 黎红； 周仲荣； 石心余； 汤晓东； 李洪庆；

【Author】 Li Hong Zhou Zhongrong Shi Xinyu Tang Xiaodong Li Hongqing1 (Hua Xi College of Stomatology, Sichuan University, Chengdu 610041) 2 (Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031)

【机构】 四川大学华西口腔医学院； 西南交通大学摩擦学研究所；

【摘要】 选用生物相容性好,力学性能优良的纯钛与人体天然牙组成的摩擦副,在改进后的高精度微动实验台上,进行润滑工况下的往复式摩擦磨损试验研究。主要试验参数为:位移幅值500μm,压力20N,频率2Hz,循环50000次。结果表明,天然牙在与纯钛的动态摩擦系数表现为由低到高,趋稳的过程;其较高的稳态摩擦系数,对维持良好的咀嚼效率有利。更多还原

【Abstract】 Under a modified fretting machine, a reciprocating sliding wear test on human natural teeth has been carried out in the condition of artificial saliva against to pure titanium which has excellent biocompatibity and mechanical properties. Main test parameters: slip amplitude 500 pm. normal load 20N . frequency 2 Hz, and number of cycles 5000. Experimental results show that the coefficient of friction exhibits a curve of increasing from low to high and then being stable. The comparative high value of the coefficient is beneficial for better masticatory efficiency.更多还原