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Indentation Fracture of Brittle Materials

Published online by Cambridge University Press:  16 February 2011

Barry N. Lucas ,
W. C. Oliver  and
J. J. Wert
Barry N. Lucas
Affiliation:
Vanderbilt University, Box 1621 Station B, Nashville, TN 37235
W. C. Oliver
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
J. J. Wert
Affiliation:
Vanderbilt University, Box 1621 Station B, Nashville, TN 37235
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Abstract

The response of four transparent materials, soda-lime glass, fused silica, single crystal (0001) A12O3, and Y2O3-ZrO2, to contact by a sharp indenter has been studied. Insitu observation and continuous monitoring of the load and displacement throughout the test allowed the indentation fracture sequence of the transparent materials to be characterized and also permitted the effects of these fracture events on the corresponding load displacement curves to be noted. It was found that if the cracks produced during indentation grew discontinuously, they manifested themselves in discontinuities in displacement on the corresponding load-displacement curve.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 188: Symposium K – Thin Films: Stresses and Mechanical Properties II , 1990 , 263
Copyright
Copyright © Materials Research Society 1990

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References

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