NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Tribological characteristics of gold films deposited on metals by ion plating and vapor depositionThe graded interface between an ion-plated film and a substrate is discussed as well as the friction and wear properties of ion-plated gold. X-ray photoelectron spectroscopy (XPS) depth profiling and microhardness depth profiling were used to investigate the interface. The friction and wear properties of ion-plated and vapor-deposited gold films were studied both in an ultra high vacuum system to maximize adhesion and in oil to minimize adhesion. The results indicate that the solubility of gold on the substrate material controls the depth of the graded interface. Thermal diffusion and chemical diffusion mechanisms are thought to be involved in the formation of the gold-nickel interface. In iron-gold graded interfaces the gold was primarily dispersed in the iron and thus formed a physically bonded interface. The hardness of the gold film was influenced by its depth and was also related to the composition gradient between the gold and the substrate. The graded nickel-gold interface exhibited the highest hardness because of an alloy hardening effect. The effects of film thickness on adhesion and friction were established.
Document ID
19860064862
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Miyoshi, K.
(NASA Lewis Research Center Cleveland, OH, United States)
Spalvins, T.
(NASA Lewis Research Center Cleveland, OH, United States)
Buckley, D. H.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Wear
Volume: 108
ISSN: 0043-1648
Subject Category
Metallic Materials
Accession Number
86A49600
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available