Alinejad, M. R. and Amirabadizadeh, A. and Tajabor, N. and Pourarian, F. and Kanekiyo, H. (2004) Magnetostriction and thermal expansion of polymer-bonded Nd4Fe77.5B18.5 nano-composite. PHYSICA STATUS SOLIDI C: MAGNETIC AND SUPERCONDUCTING MATERIALS, PROCEEDINGS . 1719-1723 . ISSN 1610-1634
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Magnetostriction and thermal expansion of polymer-bonded Nd4Fe77.5B18.5 nano-composites are measured using strain gauge method. The XRD patterns and SEM pictures of the sample are used for microstructural studies which indicate of three nanometer-grains of alpha-Fe, Fe3B and 2-14-1 phases embedded in an amorphous matrix. The overall behavior of the thermal expansion is similar to the 2-14-1 single phase alloy. The magnetostriction results show huge magnitudes in order of 10(-4) in the presence of relatively weak external magnetic fields. Magnetostriction mainly originates from single (domain) particle interactions of Nd-sublattice in Nd2Fe14B phase. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
|Divisions:||Faculty of Engineering, Science and Mathematics > School of Physics|
Faculty of Engineering, Science and Mathematics > School of Chemistry
|Deposited On:||04 Nov 2009 07:48|
|Last Modified:||04 Nov 2009 07:48|
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