Preparation of diamond-gradient film and analysis of its mechanical properties

doi:10.1088/2053-1591/ab2265

IMR OpenIR

	Preparation of diamond-gradient film and analysis of its mechanical properties
	Lu,Feng 1; Li,Hui-Xin 1; Zha,Li-Qiong 1; Wang,Yi-Bao 3; Liu,Lu-Sheng 2; Yuan,Zi-Yao 2
	2019-05-24
发表期刊	Materials Research Express
ISSN	2053-1591
卷号	6 期号:8
摘要	Abstract In order to prepare the diamond gradient film with different structure to reduce the internal stress of the diamond coating surface, the diamond coating was prepared on the cemented-carbide substrate by hot-filament chemical vapor deposition to form three types of diamond gradients: 2 layers, 3 layers and 5 layers. And they have the same total thickness (3.2 μm). Then, the films’ bond strength and friction and wear properties were investigated by using an optical microscope, x-ray diffractometer (Cu Kα), laser Raman spectrometer, LCR500 Rockwell hardness tester, and RTEC-MFT5000 friction and wear tester. Laser Raman spectrometer display that the two-, three-, and five-layer diamond-gradient film coatings showed internal stress values of ?1.644, ?0.737, and ?0.567 GPa, respectively, with the five-layer coating showing the minimum value. Indentation tests revealed that the two- and three-layer coatings were less detached whereas the five-layer one peeled off easily. Friction and wear tests indicated that the friction coefficient of the two-layer diamond-gradient film was the lowest, that of the three-layer film was the highest, and that of the five-layer film had an intermediate value. The conclusion is that under the condition of gradually changing the concentration of methane and ensuring the thickness of micron diamond, appropriately increasing the gradient layer can reduce the internal stress effectively. Adding nanodiamond in the gradient layer can reduce the friction coefficient.
关键词	diamond film gradient film cemented carbide hot-filament chemical vapor deposition friction and wear indentation
DOI	10.1088/2053-1591/ab2265
语种	英语
WOS记录号	IOP:2053-1591-6-8-ab2265
出版者	IOP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/80550
专题	中国科学院金属研究所
作者单位	1.Shenyang Jianzhu College of Mechanical Engineering, Shenyang 110000, People’s Republic of China 2.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016, People’s Republic of China 3.Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology, National Engineering and Technological Research Center of Marine Monitoring Equipment, Qingdao 266001, People’s Republic of China
推荐引用方式 GB/T 7714	Lu,Feng,Li,Hui-Xin,Zha,Li-Qiong,et al. Preparation of diamond-gradient film and analysis of its mechanical properties[J]. Materials Research Express,2019,6(8).
APA	Lu,Feng,Li,Hui-Xin,Zha,Li-Qiong,Wang,Yi-Bao,Liu,Lu-Sheng,&Yuan,Zi-Yao.(2019).Preparation of diamond-gradient film and analysis of its mechanical properties.Materials Research Express,6(8).
MLA	Lu,Feng,et al."Preparation of diamond-gradient film and analysis of its mechanical properties".Materials Research Express 6.8(2019).