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Biased Deposition of Nanocrystalline Be1−xCux Coatings

Published online by Cambridge University Press:  14 March 2011

A. Jankowski
A. Jankowski*
Affiliation:
Chemistry and Materials Science, Lawrence Livermore National Laboratory Livermore, CA 94551-9900
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Abstract

Coatings of Be1−xCux are prepared by magnetron sputter deposition onto spherical polymer mandrels. The application of an applied bias during deposition refines the columnar morphology of the coating and surface finish to the nanoscale. A mechanical testing technique is developed to load the thin-walled spherical capsules under uniaxial tension at constant strain to fracture. The bias-deposited material exhibits an increase in strength by a factor of three or more following a Hall-Petch type relationship with surface roughness.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 634: Symposium B – Structure and Mechanical Properties of Nanophase Materials-Theory & Computer Simulations vs. Experiment , 2000 , B3.15.1
Copyright
Copyright © Materials Research Society 2001

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References

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