Effect of mechanical milling and heat treatment on the structure and magnetic properties of gas atomized Mn-Al alloy powders

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	Effect of mechanical milling and heat treatment on the structure and magnetic properties of gas atomized Mn-Al alloy powders
	J. G. Lee; X. L. Wang; Z. D. Zhang; C. J. Choi
	2011
发表期刊	Thin Solid Films
ISSN	0040-6090
卷号	519 期号:23 页码:8312-8316
摘要	Ferromagnetic Mn-Al alloy powders were fabricated by mechanical milling and heat treatment with gasatomized powders. Different processes, i.e., heat treatment before ball milling and ball milling before heat treatment, result in different microstructures and magnetic properties of the powders. It was found that H(c) increased and M(r) decreased with the size reduction regardless of the sequence of heat treatment and ball milling. However, tendency of the change in H(c) and M(r) depended on the sequence. Further annealing of the powders ball-milled after heat treatment resulted in slight decrease of H(c) and large increase of M(r). The magnetic properties, M(r) = 41.2 emu/g, H(c) = 3.1 kOe, were obtained from the powders ball-milled for 5 h after heat treatment at 650 degrees C for 20 min, and subsequent annealing at 280 degrees C for 20 min. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[lee, jung-goo; wang, xiao-lei; choi, chul-jin] korea inst mat sci, funct mat div, chang won 631831, south korea. [wang, xiao-lei; zhang, zhi-dong] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [wang, xiao-lei; zhang, zhi-dong] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;lee, jg (reprint author), korea inst mat sci, funct mat div, 531 changwondaero, chang won 631831, south korea;jglee36@kims.re.kr
关键词	Mn-al Powders Mechanical Milling Annealing Magnetic Properties Coercivity Mechanisms Permanent-magnets c Magnets Ferromagnets L1(0)
URL	查看原文
WOS记录号	WOS:000295663200029
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30444
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. G. Lee,X. L. Wang,Z. D. Zhang,et al. Effect of mechanical milling and heat treatment on the structure and magnetic properties of gas atomized Mn-Al alloy powders[J]. Thin Solid Films,2011,519(23):8312-8316.
APA	J. G. Lee,X. L. Wang,Z. D. Zhang,&C. J. Choi.(2011).Effect of mechanical milling and heat treatment on the structure and magnetic properties of gas atomized Mn-Al alloy powders.Thin Solid Films,519(23),8312-8316.
MLA	J. G. Lee,et al."Effect of mechanical milling and heat treatment on the structure and magnetic properties of gas atomized Mn-Al alloy powders".Thin Solid Films 519.23(2011):8312-8316.