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Friction and wear life properties of polyimide thin filmsA transition in the friction coefficient and wear life properties of Pyralin polyimide (PI) thin films was found to exist at a temperature between 25 deg and 100 deg C. Above this transition, PI thin films gave long wear lives and low friction coefficients. The presence of H2O in air improved the friction and wear life properties at 25 deg C; but at 100 deg C, H2O had a detrimental effect. At 100 deg C and above, a dry argon atmosphere gave lower friction coefficients and longer wear lives than did a dry air atmosphere.
Document ID
19720021841
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Fusaro, R. L. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 2, 2013
Publication Date
August 1, 1972
Subject Category
Machine Elements And Processes
Report/Patent Number
NASA-TN-D-6914
E-6960
Report Number: NASA-TN-D-6914
Report Number: E-6960
Accession Number
72N29491
Funding Number(s)
PROJECT: RTOP 132-15
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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