Growth And Deformation Mechanisms In Single Crystal Spinel

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Report Number: ML TDR 64-284
Author(s): Palmour, Hayne, III, McBrayer, R. Douglas, Witter, David E., Kriegel, W. Wurth
Corporate Author(s): North Carolina State Univ Raleigh
Laboratory: Air Force Materials Laboratory
Date of Publication: 1964-09
Pages: 44
Contract: AF 33(616)-7820
DoD Project: 7350
DoD Task: 735001
Identifier: AD0607778

Abstract:
This final report of a program of research on growth and deformation processes in spinel includes a description of an R. F. plasma growth facility and its operation. The main conclusion from the growth experiments is that the instability of spinel at its melting point precludes the growth of large stoichiometric single crystals by direct fusion. Alternative techniques are discussed. The effect of heat treatment on the microindentation behavior and room temperature compressive strength of alumina-rich spinel single crystals is discussed. Some high temperature strength data on alumina-rich spinel are included.

Provenance: Lockheed Martin Missiles & Fire Control

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