Acta Metallurgica Sinica (English Letters) ›› 2003, Vol. 16 ›› Issue (4): 271-275 .

• Research Articles • Previous Articles     Next Articles

STUDY ON COMPOSITION, MICROSTRUCTURE AND HARDNESS OF DLC FILMS BY VCAD

L.Chen[1], Z.Y.Liu[1], D.C.Zeng[1], W.Q.Qiu[1], Z.H.Yuan[2], S.S.Lin[2], H.J.Hou[2]   

  1. [1]InstituteofMaterialsScience&Technology,CollegeofMechanicalEngineering,SouthChinaUniversityofTechnology,Guangzhou510640,China [2]GuangzhouResearchInstituteofNon-FerrousMetals,Guangzhou510651,ChinaManuscriptreceived25November2002
  • Received:2002-11-25 Revised:1900-01-01 Online:2003-08-25 Published:2009-10-10
  • Contact: L.Chen

Abstract: DLC super-hard films have been deposited on the substrates of single crystalline Si, pure Ti and stainless steel 18-8 by a method of vacuum cathode arc deposition (VCAD). The composition, microstructure and micro-hardness of the films have been studied in this paper. The results indicate that hardness of the DLC films is different on the different substrates. Hardness of the films increases with decreasing in surface roughness of the films. The maximum value of micro-hardness belongs to the DLC films deposited under the hydrogen pressure of 0.35Pa and the neqative bias of 100V.

Key words: DLC films, vacuum cathode arc deposition, micro-hardness,