多组分缓冲层W梯度掺杂DLC复合薄膜研究

金属学报

2010, Vol. 46

Issue (1): 34-40

论文

本期目录 | 过刊浏览

多组分缓冲层W梯度掺杂DLC复合薄膜研究

杨义勇;彭志坚;付志强;邬苏东;陈新春;王成彪

中国地质大学(北京)工程技术学院; 北京 100083

STUDY ON W GRADED DOPING DLC COMPOSITE FILMS WITH MULTICOMPONENT TRANSITION LAYER

YANG Yiyong; PENG Zhijian; FU Zhiqiang; WU Sudong; CHEN Xinchun; WANG Chengbiao

School of Engineering and Technology; China University of Geosciences; Beijing 100083

引用本文:

杨义勇彭志坚付志强邬苏东陈新春王成彪. 多组分缓冲层W梯度掺杂DLC复合薄膜研究[J]. 金属学报, 2010, 46(1): 34-40.
, , , , , . STUDY ON W GRADED DOPING DLC COMPOSITE FILMS WITH MULTICOMPONENT TRANSITION LAYER[J]. Acta Metall Sin, 2010, 46(1): 34-40.

全文: PDF(1294 KB)

摘要:

用离子束辅助非平衡中频磁控溅射技术, 在Si, 高速钢或不锈钢基体上分别沉积得到了具有多组分过渡金属层缓冲的W梯度掺杂类金刚石碳(DLC)膜, 研究了W靶电流对DLC膜组成、结构和性能的影响. 实验表明, 随着W靶电流增大, 薄膜中W掺杂量增加, W的碳化物含量增加, sp³结构含量减少; 薄膜的纳米硬度和弹性模量逐渐增大, 且材料抗塑性参数H/E随之增大; 随W靶电流增大, 材料与基体结合力增强, 划痕实验临界载荷在80-100 N之间, 材料摩擦系数增大; 但磨损率因W掺杂而明显减小, 且随W靶电流增大而减小. 样品表面元素分布均匀, 粗糙度(R_a)较小, R_a值在7.56-15.8 nm之间.

关键词 ：复合镀膜技术, DLC薄膜, W掺杂, 摩擦学性能

Abstract：

W graded doping diamond-like carbon (DLC) composite films with multicomponent transition layer were deposited onto silicon, high speed steel and/or stainless steel wafers using ion beam assisted mid-frequency unbalanced magnetron sputtering technique, and the influences of W target current on the composition, structure and properties of the DLC films were investigated. With increasing W target current, the contents of W and its carbides in the films increase, but the contents of sp³ structure decrease. Although there might be some metal droplets on the surface of the as-prepared samples, the distribution of each element is basically homogenous over the whole surface, and the roughness of sample keeps quite low value, which is in the range of 7.56-15.8 nm. The nanohardness (H), elastic modulus (E), and their ratio, H/E, increase with increasing W target current. The critical loads in scratch test of the as-prepared samples increase with the increase of W target current and are in the range of 80-100 N, indicating very strong adhesions between the films and substrates. Under ambient circumstance, the friction coefficients of the coated samples increase but the wear rates decrease obviously.

Key words： composite coating technology diamond-like carbon (DLC) film W doping, tribological property

收稿日期: 2009-07-06

ZTFLH:

TB43

基金资助:

科技部重大国际合作项目2006DFB51260和清华大学摩擦学国家重点实验室开放基金项目资助

作者简介: 杨义勇, 男, 1966年生, 副教授, 博士

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