Lubricating Properties of Molybdenum Disulfide and Tungsten Disulfide under Heavy Friction Conditions

Abstract

The frictional properties of MoS2 and WS2 were determined on an MT-6 four-ball machine against steel at 50 and 100 kg. loading over the range 20 to 400C. In vacuo and in argon and oxygen formation of sulfide films was noted; they were also prepared by heating the powdered sulfides on clean steel plates for 10 hr. at 400C in air, nitrogen, or argon, or at a given vacuum. The films were analyzed. In vacuo, the Fe surface is converted to FeS, and in nitrogen or argon to given iron sulfides. The compounds and iron sulfides are also formed by air oxidation.

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Document Details

Document Type
Technical Report
Publication Date
Jan 11, 1972
Accession Number
AD0739227

Entities

People

  • L. A. Mayorova

Organizations

  • Air Force Systems Command

Tags

DTIC Thesaurus Topics

  • Air Force
  • Chemical Reactions
  • Coefficients
  • Films
  • Foreign Technology
  • Friction
  • High Temperature
  • Iron
  • Lubricants
  • Mechanical Properties
  • Metals
  • Oxidation
  • Physical Properties
  • Solid Lubricants
  • Structural Analysis
  • Test Methods
  • X Rays

Readers

  • Analytical Chemistry
  • Molecular Photonics/Laser Physics
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).