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Mechanical Properties of Nanometre Volumes of Material: use of the Elastic Response of Small Area Indentations

Published online by Cambridge University Press:  22 February 2011

J. B. Pethica  and
W. C. Oliver
J. B. Pethica
Affiliation:
Department of Metallurgy and Science of Materials, Parks Road, Oxford OX1 3PH, England
W. C. Oliver
Affiliation:
Oak Ridge National Laboratory, P.O. Box M, Oak Ridge, TN 37832
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Abstract

A new, differential method for determining the stiffness of a sub-micron indentation contact area is presented. This allows measurement of elastic modulus as well as plastic hardness, continuously during a single indentation, and without the need for discrete unloading cycles. Some of the new experiments that become possible with this technique, especially at the nanometre scale, are described. We show quantitatively that electropolished tungsten reproducibly exhibits the ideal theoretical lattice strength at small indentation loads.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 130: Symposium C – Thin Films: Stresses and Mechanical Properties I , 1988 , 13
Copyright
Copyright © Materials Research Society 1989

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References

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