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Fabrication and Properties of Granular Fe-Ni Alloys

Published online by Cambridge University Press:  21 February 2011

A. Gavrin  and
C. L. Chien
A. Gavrin
Affiliation:
Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218
C. L. Chien
Affiliation:
Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218
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Abstract

Granular alloys of the form (Fe50Ni50)x(Al2O3)1−x, where x is the volume percent, have been produced by sputtering from a single composite target. The microstructure has been verified by X-ray diffraction and by transmission electron microscopy (TEM). The grains are single phase FeNi alloys with the fcc structure and range in size from 15 Å to 50 Å. Superparamagnetism has been observed, and the coercivity has been found to decrease with increasing grain size. The results are compared to previous work on granular Fex(SiO2)1−x.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 132: Symposium G – Multicomponent Ultrafine Microstructures , 1988 , 143
Copyright
Copyright © Materials Research Society 1989

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References

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