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Fabrication of Ferromagnetic Fe/Mullite Composite Materials Via Sol-Gel Processing

Published online by Cambridge University Press:  21 February 2011

Deanne P. Yamato ,
Abraham L. andis  and
Teh S. Kuan
Deanne P. Yamato
Affiliation:
Lockheed Aeronautical Systems Company, P. O. Box 551, Burbank, CA 91520–7013
Abraham L. andis
Affiliation:
Lockheed Aeronautical Systems Company, P. O. Box 551, Burbank, CA 91520–7013
Teh S. Kuan
Affiliation:
Lockheed Aeronautical Systems Company, P. O. Box 551, Burbank, CA 91520–7013
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Abstract

The sol-gel technique was used to fabricate α-Fe/mullite composite materials with iron concentrations ranging from 20–60 wt.% Fe. Microscopy studies showed the microstructure to consist of particulate α-Fe dispersed uniformly throughout a mullite matrix. Iron particle size, estimated by TEM, ranged from 20–500 nm. The materials exhibited ferromagnetic hysteresis with saturation magnetization Ms values as high as 115 EMU/g.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 132: Symposium G – Multicomponent Ultrafine Microstructures , 1988 , 73
Copyright
Copyright © Materials Research Society 1989

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References

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