Interface Chemistry in Ceramic Matrix Composites

Abstract

There are many possible effects of interface reactions in fiber or whisker reinforced glass or glass ceramic matrix composites. In most cases, interface reactions must be minimized because they can lead to degradation of fiber or whisker strength, destruction of interphase coatings, and modification of the interface adhesion. Nevertheless, there are systems where interface reactions are beneficial. The best example of this is in the NiCALON reinforced glass-ceramic composites where carbon interphases are generated during processing; this carbon interphase facilitates fiber pullout, and thereby, is responsible for the outstanding room-temperature toughness of these materials. There have also been suggestions, although less well documented, that interface reactions can create carbide, nitride and mullite interphases that passivate the interface to subsequent oxidation.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1993
Accession Number
ADA268629

Entities

People

  • Anant Singh
  • Carlo G. Pantano
  • Greg Bibbo
  • Jim Walck
  • Karl Spear

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Advanced Materials
  • Ceramic Materials
  • Ceramic Matrix Composites
  • Chemistry
  • Composite Material Fabrication
  • Composite Materials
  • Compound Semiconductors
  • Equations
  • Fabrication
  • Hot Pressing
  • Materials
  • Materials Engineering
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Metal Oxides
  • Silicon Carbide

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials