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Frictional and morphological properties of Au-MoS2 films sputtered from a compact targetAuMoS2 films 0.02 to 1.2 microns thick were sputtered from target compacted from 5 wt pct. Au + 95 wt pct. MoS2, to investigate the frictional and morphological film growth characteristics. The gold dispersion effects in MoS2 films are of interest to increase the densitification and strengthening of the film structure. Three microstructural growth stages were identified on the nano-micro-macrostructural level. During sliding both sputtered Au-MoS2 and MoS2 films have a tendency to break within the columner region. The remaining or effective film, about 0.2 microns thick, performs the lubrication. The Au-MoS2 films displayed a lower friction coefficient with a high degree of frictional stability and less wear debris generation as compared to pure MoS2 films. The more favorable frictional characteristics of the Au-MoS2 films are attributed to the effective film thickness and the high density packed columner zone which has a reduced effect on the fragmentation of the tapered crystallites during fracture.
Document ID
19860031520
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Spalvins, T.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Subject Category
Mechanical Engineering
Accession Number
86A16258
Distribution Limits
Public
Copyright
Other

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