Evaluation and Characterization of Ceramic Bearing Materials

Abstract

This report discusses the findings from one phase of our ongoing work to evaluate materials for Army bearing systems. The objective of this phase is to determine the response and longevity of various silicon nitride Si3N4 materials to rolling contact fatigue (RCF) using hybrid and all-ceramic systems. Tests were conducted under regular lubrication and lubrication-starved conditions for extended periods. A correlation between RCF life and the hardness, strength, and microstructure of each silicon nitride is made. The various silicon nitride materials evaluated in these RCF tests were selected on the basis of providing a varied response to the RCF parameters and conditions used.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1999
Accession Number
ADA361191

Entities

People

  • Clifford W. Hubbard
  • Gary A. Gilde
  • Jeffrey J. Swab
  • Paul J. Huang

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Electron Microscopy
  • Grain Boundaries
  • Grain Size
  • Hardness
  • Lubrication
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanics
  • Microscopy
  • Microstructure
  • Military Research
  • Naval Aviation
  • Tensile Strength
  • Test And Evaluation
  • Turbines

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).