STUDIES OF THE BRITTLE BEHAVIOR OF CERAMIC MATERIALS

Abstract

Ide tifi rs: Crystal dislocations. Extensive research on factors influencing the behavior of brittle non-metallic ceramics was undertaken. General information on the forms of Al2O3 and MgO studied and preliminary work on the effect of porosity on the fracture strength of Lucalox (Al2O3) are presented. Individual problem areas were attacked on separate task programs: (1) Effect of structural size (the zero strength); (2) Effects of strain rate; (3) Effect of non-uniform stress fields; (4) Effect of microstructure; (5) Internal friction measurements; (6) Surface energy on brittle behavior; (7) Fracture mechanisms; (8) Impurity influences; (9) Static fatigue (delayed fracture); (10) Effect of thermal-mechanical history; and (11) Surface active environments.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1962
Accession Number
AD0277659

Entities

People

  • Nicholas A. Weil

Organizations

  • IIT Research Institute

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Chemistry
  • Crystal Structure
  • Failure Mode And Effect Analysis
  • Heat Energy
  • Magnesium Compounds
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Stress Strain Relations
  • Tensile Strength

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy
  • Thin Film Deposition Science.