Open AccessInvestigation of diamond-like-carbon films prepared by unbalanced magnetron sputtering
Author(s) -
Yang Wu-Bao,
Fan Song-Hua,
Guling Zhang,
Ma Pei-Ning,
Zhang Shou-Zhong,
Du Jian
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.4944
Subject(s) - materials science , sputter deposition , high power impulse magnetron sputtering , diamond , carbon fibers , cavity magnetron , sputtering , optoelectronics , engineering physics , thin film , nanotechnology , composite material , physics , composite number
Using unbalanced magnetron sputtering method, smooth, dense and uniform diamond like carbon films (DLC) with high diamond phase content are deposited.Based on testing and analysis of deposition mechanism, we conclude that with smaller s puttering clusters and higher collision frequency between the sputtering cluster and environment molecules, and more suitable momentum of the sputtering cluste r impacting on the substrate, higher content of diamond phase in the film will result. Scanning electron micrograph shows that there are no obvious grains in this film. The micro-hardness is about 11 GPa, bulk elastic modulus is about 120 GPa as tested by nano-indentation. The optical transmittance is about 89%, ref raction coefficient is 1.952, and the deposition rate is 0.724μm/h as calculate d from the FTIR spectra.