Toughening of a Particulate-Reinforced/Ceramic-Matrix Composite

Abstract

The toughening mechanism of particulate-reinforced/ceramic-matrix composites was attributed to the thermal residual stress field induced by the differential thermal expansions of the matrix and the particulate when the composite is cooled from the processing to room temperature. The measured increase 77 percent in toughness in a TiB2-particulate/SiC-matrix ceramic composite compared well with the predicted increase of 52 percent. Keywords: Toughening mechanism; Particulate-reinforced/ceramic-matrix composite; Thermal residual stress; Crack deflection model; Eshelby's model; Coefficient of thermal expansion.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1989
Accession Number
ADA213180

Entities

People

  • Albert S. Kobayashi
  • H. S. Yoon
  • M. Taya
  • S. Hayashi

Organizations

  • University of Washington

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ceramic Matrix Composites
  • Climate Change
  • Composite Materials
  • Crystal Structure
  • Deflection
  • Engineering
  • Finite Element Analysis
  • Materials
  • Materials Science
  • Mechanical Engineering
  • Mechanical Working
  • Mechanics
  • Particles
  • Particulates
  • Residual Stress
  • Stresses
  • Two Dimensional

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Thermal Physics or Thermal Science.