Structure and Properties of Aluminum Nitride and AlON Ceramics

Abstract

A brief review of aluminum nitride and AlON ceramics is presented in the context of the pseudobinary aluminum nitride-aluminum oxide phase equilibrium system. AlON is the name applied to the nitrogen stabilized cubic spinel in this system, with a composition centered at 35.7 mole-percent AlN. First, the phase equilibria and crystal chemistry of these phases are presented, focusing on a constant anion oxynitride spinel model and the various phases, including polytypoids, in this system. Then, a brief summary is given on the processing and microstructures of AlN and AlON, with comparisons to other microstructures in this system. Finally, selected properties of AlN and AlON are discussed and tabulated, with special reference to alumina. A comprehensive reference list is given.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2002
Accession Number
ADA402960

Entities

People

  • James W. McCauley

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Aluminum Nitrides
  • Aluminum Oxides
  • Band Structures
  • Chemistry
  • Composite Materials
  • Crystal Chemistry
  • Crystal Structure
  • Crystallography
  • Crystals
  • Energy Bands
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Phase Transformations

Fields of Study

  • Materials science

Readers

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  • Powder metallurgy of Titanium alloys.