Effect of the interfacial microstructure on hardness of multi-layer diamond coatings

doi:10.1016/j.surfcoat.2023.129541

IMR OpenIR

	Effect of the interfacial microstructure on hardness of multi-layer diamond coatings
	Liu, Yanming 1; Wang, Mengrui 1,2; Liu, Lusheng 2; Song, Haozhe 2; Hu, Tianwen 2; Xiong, Jiaji 2,3; Zhai, Zhaofeng 2; Zhao, Xiao 1,2; Zhang, Chuyan 2; Yang, Bing 2; Jiang, Xin 2; Huang, Nan 2,3
通讯作者	Jiang, Xin(xjiang@imr.ac.cn) ; Huang, Nan(nhuang@imr.ac.cn)
	2023-07-15
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	464 页码:10
摘要	Multi-layer diamond coatings have been widely employed in cutting tools due to their superior mechanical performance, which mainly stems from their complex multi-layer structures and versatile interfaces. However, it is still lack of investigation on how these interfaces may be tuned to enhance the mechanical properties. Herein, the multi-layer diamond coatings with different modulation periods (lambda = 1.70, 0.87, 0.29 mu m), containing microcrystalline diamond (MCD), sub-microcrystalline diamond (SMCD) and nanocrystalline diamond (NCD) as sub-layers, were synthetized by hot filament chemical vapor deposition (HFCVD). The interfacial microstructures were characterized by scanning transmission electron microscopy (STEM). The hardness (H) and Young's modulus (E) of the coatings were evaluated by nanoindentation tests with two different modes. The planar defects including stacking faults (SFs) and twinning boundaries (TBs) are observed at both MCD/SMCD and NCD/MCD interfaces but absent at SMCD/NCD interfaces. Owing to more interfaces, SFs and TBs as barriers inhibiting the dislocation motion effectively, the H and E of the coatings are enhanced with the decrease of lambda. Hence, the coating with lambda of 0.29 mu m, possessing more SFs, TBs and more sharp interfaces, obtains the highest hardness (78.39 +/- 1.10 GPa). In summary, the mechanical properties of the multi-layer diamond coatings can be greatly improved by the elaborately designed interfacial microstructure, which is of great significance to promote the far-ranging application of diamond coatings.
关键词	Multi -layer diamond coatings Interfaces Microstructure Modulation periods Nanoindentation
资助者	Strategic Priority Research Program of the Chinese Academy of Sciences ; STS project of the Fujian Province and Chinese Academy of Sciences ; Natural Science Foundation of Shaanxi Province of China ; Graduate Student Innovation and Practical Ability Training Program of Xi'an Shiyou University
DOI	10.1016/j.surfcoat.2023.129541
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04000000] ; STS project of the Fujian Province and Chinese Academy of Sciences[2020T3001] ; Natural Science Foundation of Shaanxi Province of China[2022JM-261] ; Graduate Student Innovation and Practical Ability Training Program of Xi'an Shiyou University[YCS21111017]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:001004014000001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178190
专题	中国科学院金属研究所
通讯作者	Jiang, Xin; Huang, Nan
作者单位	1.Xian Shiyou Univ, Coll Mat Sci & Engn, Xian 710065, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Wenhua Rd 72, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yanming,Wang, Mengrui,Liu, Lusheng,et al. Effect of the interfacial microstructure on hardness of multi-layer diamond coatings[J]. SURFACE & COATINGS TECHNOLOGY,2023,464:10.
APA	Liu, Yanming.,Wang, Mengrui.,Liu, Lusheng.,Song, Haozhe.,Hu, Tianwen.,...&Huang, Nan.(2023).Effect of the interfacial microstructure on hardness of multi-layer diamond coatings.SURFACE & COATINGS TECHNOLOGY,464,10.
MLA	Liu, Yanming,et al."Effect of the interfacial microstructure on hardness of multi-layer diamond coatings".SURFACE & COATINGS TECHNOLOGY 464(2023):10.