Effect of ordering transformation rate on the magnetic properties of Fe-Pt-based bulk alloys

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	Effect of ordering transformation rate on the magnetic properties of Fe-Pt-based bulk alloys
	Q. F. Xiao ; E. Bruck ; Z. D. Zhang ; F. R. de Boer ; K. H. J. Buschow
刊名	Journal of Magnetism and Magnetic Materials
	2004
卷号	280 期号:2-3 页码:381-390
关键词	disorder-order transformation nanoscale exchange coupling Fe59.75Pt39.5Nb0.75 bulk alloy phase-transformation ferromagnets l1(0)
ISSN号	0304-8853
中文摘要	We have investigated the ordering transformation and magnetic properties of Fe59.75Pt39.5Nb0.75 bulk alloys in detail by using different high-temperature homogenization treatments, different cooling rates and different low-temperature annealing treatments to obtain samples with different microstructure and different atomically ordered states. The quenching rate after the high-temperature homogenization treatment was chosen much lower than in previous investigations. In this way, we were able to obtain natiostructured bulk alloys consisting exclusively of the hard-magnetic face-centered-tetragonal phase. A high remanence ratio was obtained by profiting from the nanocomposite exchange coupling between nearest-neighbor-ordered regions. The present results are compared with results of previous investigations in which much higher cooling rates were applied. We also discussed why the present alloy systems are less suitable for the attainment of exchange spring behavior. (C) 2004 Elsevier B.V. All rights reserved.
原文出处	://WOS:000223673100031
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/35651]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. F. Xiao,E. Bruck,Z. D. Zhang,et al. Effect of ordering transformation rate on the magnetic properties of Fe-Pt-based bulk alloys[J]. Journal of Magnetism and Magnetic Materials,2004,280(2-3):381-390.
APA	Q. F. Xiao,E. Bruck,Z. D. Zhang,F. R. de Boer,&K. H. J. Buschow.(2004).Effect of ordering transformation rate on the magnetic properties of Fe-Pt-based bulk alloys.Journal of Magnetism and Magnetic Materials,280(2-3),381-390.
MLA	Q. F. Xiao,et al."Effect of ordering transformation rate on the magnetic properties of Fe-Pt-based bulk alloys".Journal of Magnetism and Magnetic Materials 280.2-3(2004):381-390.