Journal of Inorganic Materials ›› 2018, Vol. 33 ›› Issue (3): 331-338.doi: 10.15541/jim20170217

• Orginal Article • Previous Articles     Next Articles

Metal Buffer Layer on Structure, Mechanical and Tribological Property of GLC films

Lei LI1,2(), Peng GUO1, Lin-Lin LIU1, Li-Li SUN1, Pei-Ling KE1(), Ai-Ying WANG1()   

  1. 1. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
  • Received:2017-05-03 Revised:2017-06-23 Online:2018-03-20 Published:2018-03-12
  • About author:LI Lei. E-mail: llei@nimte.ac.cn
  • Supported by:
    National Natural Science Foundation of China (51522106, 51375475);Pubic Project of Zhejiang Province (2016C31121);Ningbo Municipal Natural Science Foundation (2015A610089)

Abstract:

Graphite-like carbon films (GLC) with different metal buffer layers (Cr, Ti, W) were fabricated by direct current magnetron sputtering technique. The effect of metal buffer layer on structure and tribological properties in artificial seawater were carefully investigated. The results show that, in contrast to Ti/GLC and W/GLC film, Cr/GLC film has the highest sp2 hybridization content, which increases from the top layer to Cr/C interface. The highest sp2 hybridization content promotes graphitization degree of the tribo-film which acts as lubrication phase in the sliding process. The results of potentiodynamic polarization tests show that, in all of three GLC films, Cr/GLC film shows superior corrosion resistance with the highest corrosion voltage (Ecorr) of -0.16 V and the lowest corrosion current (icorr ) of 4.42×10-9 A/cm2. As a result, Cr/GLC film presents the best tribological properties in artificial seawater in contrast to Ti/GLC and W/GLC films.

Key words: seawater, GLC, metal buffer layer, EELS

CLC Number: 

  • TH117