Time-Temperature Dependence of the Strength of Commercial Zirconia Ceramics,

Abstract

The usual combination of attractive properties exhibited by transformation toughened zirconias (TTZ's) has focused attention on them as leading candidates for application in the adiabatic Diesel engine. These materials are age-hardened ceramic alloy systems and as such they are likely to be susceptible to overaging and loss of strength at long times at high temperatures. This paper presents preliminary data on the microstructural, phase and dimensional stability of aged TTZ's together with some data on the effects of aging on strength, toughness and modulus. Stress rupture data on TTZ's with both Mg0 and Y203 additions show a considerable decrease in load carrying ability at temperatures of 800 C and above. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1984
Accession Number
ADA146233

Entities

People

  • G. D. Quinn
  • L. J. Schioler
  • R. N. Katz

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Ceramic Materials
  • Crystal Lattices
  • Diesel Engines
  • Energy
  • Engineering
  • Failure Mode And Effect Analysis
  • Heat Engines
  • Heat Treatment
  • Massachusetts
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Mechanics
  • New England
  • Security

Fields of Study

  • Materials science

Readers

  • Geotechnical Engineering.
  • Metallurgy
  • Reinforced Composite Materials