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Mechanical Properties of Thin Film Aluminum Fibers: Grain Size Effects

Published online by Cambridge University Press:  16 February 2011

James E. Steinwall  and
H. H. Johnson
James E. Steinwall
Affiliation:
Department of Materials Science and Engineering, Cornell University. Ithaca, New York 14853
H. H. Johnson
Affiliation:
Department of Materials Science and Engineering, Cornell University. Ithaca, New York 14853
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Abstract

Thin film aluminum fibers with grain sizes of 35 and 100 nm were pulled in a microtensile tester. The larger grains led to greater yield and tensile strengths but smaller strains to failure. Both samples had mechanical strengths 3–6 times greater than bulk aluminum. In addition, the small grained fibers had a strain rate sensitivity exponent of 0.26 suggesting diffusion controlled plastic deformation mechanisms.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 188: Symposium K – Thin Films: Stresses and Mechanical Properties II , 1990 , 177
Copyright
Copyright © Materials Research Society 1990

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References

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