Tailoring the mechanical and tribological properties of B4C/a-C coatings by controlling the boron carbide content | |
Department | 固体润滑国家重点实验室 |
He DQ(何东青)1,3; Shang LL(尚伦霖)1; Lu ZB(鲁志斌)1; Zhang GA(张广安)1; Wang LP(王立平)2; Xue QJ(薛群基)1; Zhang GA(张广安); Wang LP(王立平) | |
2017 | |
Source Publication | Surface and Coatings Technology |
ISSN | 0257-8972 |
Volume | 329Pages:11-18 |
Abstract | Boron carbide doped DLC coating can combine the property superiority of these two materials to create highperformance carbon-based coating, while the final property of the composite coating is strongly dependent on the proportion of coating components. The aim of this study was to investigate the effect of boron carbide content on the mechanical and tribological properties of the magnetron sputtered B4C/a-C coatings, as well as the relevant low friction mechanism. It was found that both the carbon matrix and introduced boron carbide were amorphous and the composite coating exhibited typical columnar structure. Appropriate doping of boron carbide significantly enhanced coating hardness, toughness as well as the adhesion strength and carrying ability, and all of them reached the optimal value when the B concentration was 2.92 at.%. It was also found that the B4C/a-C coating with B 2.92 at.% exhibited the lowest steady friction coefficient about 0.05 and highest wear resistance at 20% RH. None of boric acid was formed on the sliding interface under the tested humidity range. Thus, the improved tribological properties were mainly attributed to the enhanced mechanical properties and friction-induced formation of an intact graphitized carbon transfer layer on the counterpart under specific humidity condition. |
Keyword | Boron Carbide B4c/a-c Coating Magnetron Sputtering Mechanical Properties Tribological Properties |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.surfcoat.2017.09.017 |
Funding Organization | the National Basic Research Program of China (973 Program) (Grant no. 2013CB632302);the National Natural Science Foundation of China (Grant no. 21373249;51405476) |
Indexed By | SCI |
If | 2.589 |
Language | 英语 |
Funding Project | 低维材料摩擦学研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22669 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Zhang GA(张广安); Wang LP(王立平) |
Affiliation | 1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2.Key Laboratory of Marine Materials and Related Technologies, Key Laboratory of Marine Materials and Protective Technologies of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China 3.University of Chinese Academy of Sciences, Beijing 100039, China |
Recommended Citation GB/T 7714 | He DQ,Shang LL,Lu ZB,et al. Tailoring the mechanical and tribological properties of B4C/a-C coatings by controlling the boron carbide content[J]. Surface and Coatings Technology,2017,329:11-18. |
APA | He DQ.,Shang LL.,Lu ZB.,Zhang GA.,Wang LP.,...&王立平.(2017).Tailoring the mechanical and tribological properties of B4C/a-C coatings by controlling the boron carbide content.Surface and Coatings Technology,329,11-18. |
MLA | He DQ,et al."Tailoring the mechanical and tribological properties of B4C/a-C coatings by controlling the boron carbide content".Surface and Coatings Technology 329(2017):11-18. |
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