| Microstructure and tribology of TiC(Ag)/a-C:H nanocomposite coatings deposited by unbalanced magnetron sputtering | |
| Department | 固体润滑国家重点实验室 |
Wang YF(王云峰)1; Wang J(王君)1; Zhang GA(张广安)2 ; Wang LP(王立平)2; Yan PX(阎鹏勋)1; Wang LP(王立平)
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| 2012 | |
| Source Publication | Surface & Coatings Technology
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| ISSN | 0257-8972 |
| Volume | 206Issue:14Pages:3299-3308 |
| Abstract | TiC(Ag)/a-C:H nanocomposite coatings with various Ag concentrations were fabricated on Si p(100) substrates. The composition and structure of as-deposited nanocomposite coatings were systemically investigated, and the friction and wear behaviors were also evaluated under the ambient, high temperature and high vacuum, respectively. Results show that the TiC nanocrystallites were formed in the amorphous hydrogenated carbon matrix near the substrate. The co-dopant Ag possessed nanocrystalline structure in the as-fabricated coatings whilst it formed Ag clusters (10–50 nm) on the surface. Furthermore, the introduction of Ag caused a significant reduction in the residual compressive stress without considerable decrease of the hardness and improved the adhesive strength of nanocomposite coatings. Tested as-deposited and after annealed at 500 °C coatings, the TiC(Ag)/a-C:H coatings showed a reduction of friction coefficients and wear rates with increment of Ag concentration. Under high vacuum condition, the TiC(Ag)/a-C:H coatings presented superlow friction behavior where the friction coefficient was reduced from 0.01 to 0.005 and lifetime increased from 0 to 1500 cycles. The significant improvement in tribological properties was mainly attributed to the low shear strength of Ag clusters on the surface as well as Ag diffusion to surface and wear track of coatings. The superior friction and wear behaviors of TiC(Ag)/a-C:H coatings make them good candidates as solid lubrication materials in space and aircraft applications. |
| Keyword | Nanocomposite Tic(Ag)/a-c:h High Vacuum Superlow Friction |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.surfcoat.2012.01.036 |
| Funding Organization | the National Natural Science Foundation of China (No. 11172300;No. 11004203) |
| Indexed By | SCI |
| If | 1.941 |
| Language | 英语 |
| Funding Project | 低维材料摩擦学组 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3463 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Wang LP(王立平) |
| Affiliation | 1.School of Physics Science & Technology, Lanzhou University, Lanzhou 73000, PR China 2.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China |
| Recommended Citation GB/T 7714 | Wang YF,Wang J,Zhang GA,et al. Microstructure and tribology of TiC(Ag)/a-C:H nanocomposite coatings deposited by unbalanced magnetron sputtering[J]. Surface & Coatings Technology,2012,206(14):3299-3308. |
| APA | Wang YF,Wang J,Zhang GA,Wang LP,Yan PX,&王立平.(2012).Microstructure and tribology of TiC(Ag)/a-C:H nanocomposite coatings deposited by unbalanced magnetron sputtering.Surface & Coatings Technology,206(14),3299-3308. |
| MLA | Wang YF,et al."Microstructure and tribology of TiC(Ag)/a-C:H nanocomposite coatings deposited by unbalanced magnetron sputtering".Surface & Coatings Technology 206.14(2012):3299-3308. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 3299-3308.PDF（2742KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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