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A vacuum (10 exp -9 torr) friction apparatus for determining friction and endurance life of MoS(x) filmsAn ultrahigh-vacuum tribometer for use in a ball-on-disk configuration was specially designed for measuring the friction and endurance life of magnetron-sputtered solid lubricating MoS(x) films deposited on sputter-cleaned 400 C stainless-steel disks, when slid against a 6-mm-diameter 440 C stainless-steel ball. The results of tests showed that the tribometer performs satisfactorily in unidirectional rotation in vacuum at a pressure of 10 exp -7 Pa, 10 exp -9 torr. Similarities are observed in the life cycle friction behavior and the coefficient of friction as a function of the number of disk revolutions, for MoS(x) films at average Hertzian contact from 0.33 to 0.69 GPa.
Document ID
19930065248
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Miyoshi, Kazuhisa
(NASA Lewis Research Center Cleveland, OH, United States)
Honecy, Frank S.
(NASA Lewis Research Center Cleveland, OH, United States)
Abel, Phillip B.
(NASA Lewis Research Center Cleveland, OH, United States)
Pepper, Stephen V.
(NASA Lewis Research Center Cleveland, OH, United States)
Spalvins, Talivaldis
(NASA Lewis Research Center Cleveland, OH, United States)
Wheeler, Donald R.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Publication Information
Publication: STLE Tribology Transactions
Volume: 36
Issue: 3
ISSN: 0569-8197
Subject Category
Engineering (General)
Accession Number
93A49245
Distribution Limits
Public
Copyright
Other

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