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Fractographic Evidence of Multiple Slip in Deformed Hot-Pressed Spinel

  • Dong M. Choi
  • Hayne PalmourIII
Conference paper
Part of the Materials Science Research book series (MSR)

Abstract

Spinel is a refractory oxide ceramic which, in principle, should meet the Taylor-von Misés criterion of five slip modes, a necessary condition for the achievement of polycrystalline plasticity without loss of structural integrity. Crystallographically, its (111)[110] slip systems are multiple and quite comparable to those of a face-centered-cubic metal. Fractographic examinations of a spinel specimen (> 99.9% pure) previously subjected to deformation in three compressive stress cycles at 1600°C have revealed several microscopic features characteristic of polycrystalline plasticity which experimentally support the expectation of multiple slip processes in spinel ceramics.

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Copyright information

© Springer Science+Business Media New York 1966

Authors and Affiliations

  • Dong M. Choi
    • 1
  • Hayne PalmourIII
    • 1
  1. 1.North Carolina State UniversityRaleighUSA

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