Self-Lubricating Composite Materials for Naval Aircraft. Differential Thermal Analysis of Self-Lubricating Bearing System Compositions and Wear Debris.

Abstract

Differential Thermal Analysis (DTA) was employed as an analytical device in the study of physical and chemical changes associated with high bearing contact area temperatures for self-lubricating Mo-S-Fe and W-S-Fe bearing systems, which were investigated using Falex lubricant equipment. Initial reaction temperatures for the elemental constituents comprising these systems were determined. Wear debris from those self-lubricating systems, which exhibited extended endurance life, was analyzed using the DTA technique. Free energy considerations, together with thermoanalytical results and 'wet' chemical tests, suggest that compound formation, i.e., MoS2 and WS2, is a key factor in achieving extended performance life for these systems. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 28, 1971
Accession Number
AD0732761

Entities

People

  • Alfeo A. Conte Jr.

Organizations

  • Naval Air Warfare Center Warminster

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Composite Materials
  • Differential Thermal Analysis
  • Energy
  • Free Energy
  • Lubricants
  • Materials
  • Molecular Orbital Theory
  • Thermal Analysis
  • Thermodynamic Properties
  • Thermodynamics
  • Vehicle Equipment
  • Vehicles

Readers

  • Materials Science and Engineering.
  • Software Engineering.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).