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Fabrication of Ferromagnetic Fe/Mullite Composite Materials Via Sol-Gel Processing
Published online by Cambridge University Press: 21 February 2011
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.
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- Copyright © Materials Research Society 1989
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