Slip Systems in Stoichiometric MgAl2O4 Spinel

  • L. Hwang
  • A. H. Heuer
  • T. E. Mitchell

Abstract

The mechanical properties of stoichiometric MgAl2O3 spinel single crystals have been investigated at high temperatures (∿1800°C). The slip system has been determined by slip trace analysis and electron microscopy to be {111} <110>. This behavior is rationalized by analyzing the changes in atomic configuration around dissociated dislocations as they move through the lattice. The change to {110} slip planes in non-stoichiometric aluminarich spinel is explained in terms of the influence of cation vacancies on the dislocation structure and movement.

Keywords

Furnace Carbide Argon Sapphire MgAl2O4 

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Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • L. Hwang
    • 1
    • 2
  • A. H. Heuer
    • 1
  • T. E. Mitchell
    • 1
  1. 1.Dept. of Metallurgy & Materials ScienceCase Western Reserve UniversityClevelandUSA
  2. 2.Truline CastingsClevelandUSA

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