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Adhesion and transfer of PTFE to metals studied by auger emission spectroscopyThe adhesion and transfer of polytetrafluoroethylene (PTFE) to metals in ultrahigh vacuum has been studied using Auger emission spectroscopy. The transfer was effected both by compressive static contact and by sliding contact. The transfer observed after static contact was independent of the chemical constitution of the substrate. Electron induced desorption of the fluorine in the transferred PTFE showed that the fluorine had no chemical interaction with the metal substrate. The coefficient of friction on metals was independent of the chemical constitution of the substrate. However, sliding PTFE on soft metals such as aluminum, generated wear fragments that lodged in the PTFE and machined the substrate.
Document ID
19720019500
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pepper, S. V. (NASA Lewis Research Center Cleveland, OH, United States)
Buckley, D. H. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 2, 2013
Publication Date
January 1, 1972
Subject Category
Chemistry
Report/Patent Number
E-6897
NASA-TM-X-68076
Meeting Information
Meeting: Natl. Colloid Symp.
Location: Amherst, MA
Country: United States
Start Date: June 19, 1972
End Date: June 21, 1972
Sponsors: Am. Chem. Soc.
Accession Number
72N27150
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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