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Specimen Cage Modification for Tem in-Situ Shearing

Published online by Cambridge University Press:  21 February 2011

Annemarie Meike*
Affiliation:
Earth Sciences Division, Lawrence Berkeley Laboratory, University of California Berkeley, California 94720
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Abstract

In-situ strain experiments with the electron microscope have contributed substantially to our understanding of deformation in metals and ceramics. However, physical characteristics of rock-forming minerals limit the direct application of experimental procedures developed for metals. The minerals muscovite (KAl2(Si3Al)O10(OH,F)2) and biotite (K(Mg0.6–1.8 Fe2.4–1.2) (Si3Al)O10 (OH,F)2) are chosen to develop techniques for preliminary deformation experiments. The present communication describes modifications of sample preparation techniques for micas. The standard tensile straining configuration is altered to a simple shear geometry by means of an intermediary specimen cage to allow the use of a more favorable sample orientation. The extension of the shearing geometry to the in-situ deformation of other rock-forming minerals is discussed.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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References

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