The effect of vacuum atomic oxygen and ultraviolet radiations on Ag/a-C:H nanocomposite film
The effect of vacuum atomic oxygen and ultraviolet radiations on Ag/a-C:H nanocomposite film
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真空原子氧和紫外辐射对Ag/a-C:H纳米复合薄膜的影响
DOI：
10.1016/j.triboint.2016.05.002
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发表时间：
2016-09-01
影响因子：
6.2
通讯作者：
Tang, Bin
中科院分区：
文献类型：
--
作者：
Wu, Yanxia;Liu, Ying;Tang, Bin
采用中频非平衡磁控溅射法制备了Ag/a-C：H纳米复合薄膜。研究了真空原子氧和紫外辐照对Ag/a-C：H纳米复合薄膜的成分、微观结构、形貌和真空摩擦学性能的影响。结果表明，辐照能引起碳基体的氧化分解，导致表面附近Ag含量升高，sp（2）碳含量增加，组织结构发生重构。结果表明，Ag原子的扩散速率增加，而碳网络的连接性和刚性降低。复合膜经辐照后具有低摩擦、高磨损性能。(C)2016爱思唯尔有限公司版权所有
Ag/a-C:H nanocomposite film with nanosized Ag particles (about 2-5 nm) embedded in a-C:H matrix is deposited by the medium frequency unbalanced magnetron sputtering. The effects of vacuum atomic oxygen and ultraviolet radiations on the composition, microstructure, morphology and vacuum tribological properties of the Ag/a-C:H nanocomposite film have been investigated. Results show that the radiations can induce the oxidation and decomposition of carbon matrix, which lead the high Ag content nearby surface, the increased sp(2) carbon content, as well as the reconstruction of microstructure. As a result, the diffusion rate of Ag atoms increases while the connectivity and rigid of the carbon network decrease. The composite film exhibits low friction and high Wear performance after radiations. (C) 2016 Elsevier Ltd. All rights reserved.