Tailoring the mechanical and tribological properties of B4C/a-C coatings by controlling the boron carbide content

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2017专题

	Tailoring the mechanical and tribological properties of B4C/a-C coatings by controlling the boron carbide content
	Xue, Qunji; He, Dongqing; Shang, Lunlin; Lu, Zhibin; Zhang, Guangan; Wang, Liping
刊名	SURFACE & COATINGS TECHNOLOGY
	2017
卷号	329 页码:43057
ISSN号	0257-8972
英文摘要	Boron carbide doped DLC coating can combine the property superiority of these two materials to create high-performance 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 add 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.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13502]
专题	2017专题
推荐引用方式 GB/T 7714	Xue, Qunji,He, Dongqing,Shang, Lunlin,et al. Tailoring the mechanical and tribological properties of B4C/a-C coatings by controlling the boron carbide content[J]. SURFACE & COATINGS TECHNOLOGY,2017,329:43057.
APA	Xue, Qunji,He, Dongqing,Shang, Lunlin,Lu, Zhibin,Zhang, Guangan,&Wang, Liping.(2017).Tailoring the mechanical and tribological properties of B4C/a-C coatings by controlling the boron carbide content.SURFACE & COATINGS TECHNOLOGY,329,43057.
MLA	Xue, Qunji,et al."Tailoring the mechanical and tribological properties of B4C/a-C coatings by controlling the boron carbide content".SURFACE & COATINGS TECHNOLOGY 329(2017):43057.