EFFECTS OF FINE REFRACTORY DISPERSION ON THE COMPRESSIVE STRENGTH OF A GLASSY-BONDED CERAMIC MATERIAL

Abstract

The effects of a submicron precipitate, B7O, on the compressive strength of a Si-B-O ceramic material were determined. The quantity of the submicron precipitate was increased in increments of 25% by substitution of amorphous B for crystalline B in a Si + 35 wt-% B model ceramic system. The average compressive strength increased from 195,740 psi for 100% crystallne B to 234,240 psi for 100% amorphous B. The increase in the compressive strength was attributed to a change of the internal stresses and impediment of crack propagation resulting from the introduction of the submicron precipitate, B7O, into the borosilicate matrix.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1961
Accession Number
AD0268250

Entities

People

  • Joseph J. Dusbabek

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Body Weight
  • Ceramic Bodies
  • Ceramic Materials
  • Chemical Reactions
  • Compressive Strength
  • Confidence Limits
  • Fabrication
  • High Temperature
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Refractory Materials
  • Statistical Analysis
  • Surface Properties
  • United States
  • X Rays

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.