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Synthesis, characterization and thermal behaviour of Fe0.65Co0.35-MgAl2O4 and Fe0.65Ni0.35-MgAl2O4 nanocomposite powders

Quénard, Olivier and De Grave, Eddy and Laurent, Christophe and Rousset, Abel Synthesis, characterization and thermal behaviour of Fe0.65Co0.35-MgAl2O4 and Fe0.65Ni0.35-MgAl2O4 nanocomposite powders. (1997) Journal of Materials Chemistry, 7 (12). 2457-2467. ISSN 0959-9428

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Official URL: http://dx.doi.org/10.1039/A703773B

Abstract

Fe0.65Co0.35-MgAl2O4 and Fe0.65Ni0.35-MgAl2O4 nanocomposite powders are prepared by selective hydrogen reduction of monophasic oxide solid solutions synthesized by combustion in urea. The alloy particles, which are dispersed in the spinel matrix, are about 10 nm in size. An increase in reduction temperature from 700 to 1000 °C produces a narrowing of the particles’ composition range and an average composition closer to the target one. The magnetic nature of the alloy nanoparticles is discussed. The nanoparticles dispersed inside the oxide grains, which account for more than two thirds of the total metallic phase, are stable in air up to ca. 800 °C.

Item Type:Article
Additional Information:Thanks to Royal Society of Chemistry editor. The original PDF of the article can be found at Journal of Materials Chemistry website : http://pubs.rsc.org/en/Content/ArticleLanding/1997/JM/a703773b#!divAbstract
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Universiteit Gent - UGENT (BELGIUM)
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Deposited On:31 Jan 2014 08:29

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