Fe-Al2O3 nanocomposites prepared by high-energy ball milling
- 15 May 1994
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 75 (10) , 5867-5869
- https://doi.org/10.1063/1.355544
Abstract
Nanocomposites of α‐Fe and α‐Al2O3, prepared by high‐energy ball milling, exhibit coercivities which are enhanced by about two orders of magnitude with respect to the bulk value. The degree of enhancement depends on the volume fraction (xv) of Fe, with a maximum for xv≊0.25. The effect is ascribed to the production of single‐domain magnetic grains. Mössbauer spectroscopy reveals the presence of iron oxide phases which could not be seen by x‐ray and electron diffraction measurements.This publication has 4 references indexed in Scilit:
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