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A low-stress, elastic and improved hardness hydrogenated amorphous carbon film
Wang Qi 1 * #,He Deyan 2,Zhang Junyan 3
1.School of Physics, Lanzhou University, LanZhou 730000
2.School of Physics, Lanzhou University, Lanzhou 730000
3.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Lanzhou 730000
*Correspondence author
#Submitted by
Subject:
Funding: The project was financially supported by the Ph.D. Programs Foundation of Ministry of Education of China (No.No. 20100211120017)
Opened online: 2 August 2013
Accepted by: none
Citation: Wang Qi,He Deyan,Zhang Junyan.A low-stress, elastic and improved hardness hydrogenated amorphous carbon film[OL]. [ 2 August 2013] http://en.paper.edu.cn/en_releasepaper/content/4553353
 
 
The evolution of hydrogenated amorphous carbon films with fullerene-like microstructure was investigated with the proportion of hydrogen in introduction. The results showed that the films deposited at hydrogen flow rate 50sccm exhibited lower compressive stress (lower 48.6%), higher elastic recovery (higher 19.6%, near elastic recovery rate 90%) and higher hardness (higher 7.4%) than the films deposited without hydrogen introduction. Structural analysis showed the film had relatively high sp2 content and low bonded hydrogen content possessed high hardness, elastic recovery rate and low compressive stress. It was attributed to the curved graphite microstructure, which can form three-dimensional covalently bonded network.
Keywords:microstructure; coatings; mechanical properties; X-ray photo-emission spectroscopy (XPS)
 
 
 

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