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Characterization of Plasticity in Bimaterial Interface Fracture by STM

Published online by Cambridge University Press:  25 February 2011

Clifford P. Warner
Affiliation:
University of Pennsylvania, 3231 Walnut St., Philadelphia PA 19104
Dawn A. Bonnell
Affiliation:
University of Pennsylvania, 3231 Walnut St., Philadelphia PA 19104
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Abstract

The Scanning Tunneling Microscope was used as a surface profilometer to image fractured interfaces of a model metal/ceramic system, Au/sapphire. By characterizing the metal side of interface fracture, features related to plastic deformation were quantified. The spatial resolution of STM allowed these measurements to be made down to the nanometer scale. Mathematical techniques were developed to characterize surface features on several size scales and to relate them to the mechanisms from which they were produced.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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References

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