期刊
CERAMICS INTERNATIONAL
卷 41, 期 1, 页码 1603-1608出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.09.097
关键词
Nanocomposites; Magnetic properties; Exchange spring magnet; Polyvinyl alcohol; Strontium hexaferrite
In this article we have observed the exchange spring behavior in the soft (Co0.6Zn0.4Fe2O4) hard (SrFe10.5O16.75) ferrite nanocomposites by tailoring the particle size of the individual phases and by suitable thermal treatment of the composites. Two phases were prepared with sol gel method and under appropriate stoichiometry that improved magnetic properties of these two phases. XRD analysis indicates formation of pure phase for each hard, soft and nanocomposite magnetic phases. The magnetization curves for the nanocomposites heated at different temperatures show the presence of exchange spring behavior in the composite heated at 800 degrees C and an enhancement of 53% in (BH)(max) compared to the parent hard ferrite (SrFe10.5O16.75). (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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