Nano Archive

Effect of Tb substitution on the magnetic properties of exchange-biased Nd2Fe14B/Fe3B

Hoque, S. M. and Hakim, M. A. and Khan, F. A. and Dan, N. H. (2007) Effect of Tb substitution on the magnetic properties of exchange-biased Nd2Fe14B/Fe3B. JOURNAL OF MATERIALS SCIENCE , 42 (22). 9415-9420 . ISSN 0022-2461

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Official URL: http://www.springerlink.com/content/13m64848237444...

Abstract

Tb-substituted (Nd,Tb)(2)Fe14B/Fe3B nanocomposite ribbons have been synthesized by melt spinning of Nd3Tb1Fe76Cu0.5Nb1B18.5 alloys. Tb substitution has significantly enhanced the value of coercivity and Curie temperature. Highest value of coercivity has been obtained as 4.76 kOe for the sample annealed at 953 K for 10 min. Curie temperature of Tb substituted sample, Nd3Tb1Fe76Cu0.5Nb1B18.5 is 549 K while Curie temperature of the sample without Tb, Nd4Fe76Cu0.5Nb1B18.5 is 535 K. Recoil hysteresis loops measured along the major demagnetization curve are steep having small recoil loop area. Temperature dependence of coercivity, remanent ratio and maximum energy product have been measured for the sample annealed at 893 K and 923 K for 10 min. At 5 K, coercivity and maximum energy product of the sample annealed at 893 K for 10 min are 5.2 kOe and 11.5 MGOe respectively and the sample annealed at 923 K for 10 min are 6 kOe and 13.1 MGOe respectively.

Item Type:Article
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
ID Code:9813
Deposited By:JNCASR
Deposited On:10 Nov 2010 05:10
Last Modified:10 Nov 2010 05:10

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