Adhesion and Transfer of Polytetrafluoroethylene to Metals Studied by Auger Emission Spectroscopy.

Abstract

The adhesion and transfer of polytetrafluoroethylene (PTFE) to metals in ultrahigh vacuum have been studied by 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. p2

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1972
Accession Number
ADA307541

Entities

People

  • Donald H. Buckley
  • Stephen V. Pepper

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Auger Electrons
  • Chemical Bonds
  • Chemistry
  • Covalent Bonds
  • Electron Beams
  • Electron Energy
  • Electron Spectroscopy
  • Emission Spectroscopy
  • Films
  • Friction
  • Materials
  • Materials Laboratories
  • Materials Science
  • Oxide Films
  • Sliding Contacts
  • Spectra
  • Spectroscopy

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).

Technology Areas

  • Microelectronics