Reduction in Frictional Force of ZnO Coatings in a Vacuum
Reduction in Frictional Force of ZnO Coatings in a Vacuum
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DOI：
10.1143/jjap.47.8914
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发表时间：
2008-12-01
影响因子：
1.5
通讯作者：
Tosa, Masahiro
中科院分区：
文献类型：
--
作者：
Goto, Masahiro;Kasahara, Akira;Tosa, Masahiro
采用射频磁控溅射法在不锈钢基体上制备了具有择优取向的氧化锌薄膜。用X射线衍射分析了ZnO薄膜的晶体结构。采用真空摩擦磨损试验机在大气和真空条件下测试了涂层的摩擦性能。在真空中的ZnO涂层的摩擦性能表现出不规则性相比，正常的属性描述的阿蒙顿-库仑定律。结果表明，由于真空中的压电效应，摩擦测试探针与涂层之间的电相互作用发生了变化。在真空条件下，在0.2 N的正常负载下，实现了ZnO涂层的摩擦系数（mu = 0.075）的减少。[DOI 10.1143/JJAP.47.8914]
Zinc oxide coatings with crystal preferred orientation on stainless steel substrates were deposited by rf magnetron sputtering. The crystal structure of the ZnO coatings was analyzed by X-ray diffraction spectroscopy. The frictional properties of the coatings were measured under atmosphere and in a vacuum using a vacuum tribometer. The frictional properties of the ZnO coatings in a vacuum show irregularities when compared with the normal properties described by the Amonton-Coulomb law. It was revealed that the electric interaction between the probe for the friction test and the coatings changed owing to the piezoelectric effect in a vacuum. A reduction in the frictional coefficient of the ZnO coatings (mu = 0.075) was achieved at a normal load of 0.2 N under vacuum conditions. [DOI: 10.1143/JJAP.47.8914]