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Comparative study of the temperature dependence of hardness and compressive strength in ceramics

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Abstract

Hardness and compressive strength of several strong ceramics are measured from room temperature to 1000° C. Similarities in behaviour, and the results of microscopic examination, are interpreted in terms of the relative contributions of microplasticity and microfracture to material failure during compression testing and microhardness indentation. It is shown that microplasticity alone is an insufficient basis upon which to relate material response under the two test conditions, and that tensile microfracture is a significant contributor both to compressive failure and to subsurface indentation deformation, hence to hardness.

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Authors and Affiliations

  1. Department of Materials Sciences, Southwest Research Institute, 78284, San Antonio, Texas, USA

    James Lankford

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  1. James Lankford
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Lankford, J. Comparative study of the temperature dependence of hardness and compressive strength in ceramics. J Mater Sci 18, 1666–1674 (1983). https://doi.org/10.1007/BF00542061

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  • DOI: https://doi.org/10.1007/BF00542061

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