Microstructurally Developed Toughening Mechanisms in Ceramics--Transformation Toughening in the A1 sub 2 O sub 3/ZrO sub 2 Composite System.

Abstract

Three A1203/ZrO2 composites series, containing 0, 2, and 7.5 mole % Y203, respectively, were fabricated. For the A1203/ZrO2(+2M/oY203) series, tetragonal ZrO2 was retained from one end-member to the other. Significant increases in fracture toughness and strength were observed for materials in this system. Strengths decreased with increasing temperature. These results are consistent with previous theoretical predictions. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1979
Accession Number
ADA076439

Entities

People

  • F. F. Lange

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Elastic Properties
  • Fabrication
  • Flexural Strength
  • Free Energy
  • Grain Size
  • Materials
  • Materials Processing
  • Measurement
  • Mechanical Working
  • Mechanics
  • Metal Matrix Composites
  • Military Research
  • Modulus Of Elasticity
  • Particle Size
  • Particles
  • Stress Intensity Factors

Fields of Study

  • Materials science

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  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Materials Science (Mechanical Engineering).