Magnetocaloric effect and size-effect related thermal hysteresis reduction in MnAs(1-x)P(x) compounds

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	Magnetocaloric effect and size-effect related thermal hysteresis reduction in MnAs(1-x)P(x) compounds
	N. K. Sun; S. N. Xu; D. Li; Z. D. Zhang
	2011
发表期刊	Physica Status Solidi a-Applications and Materials Science
ISSN	1862-6300
卷号	208 期号:8 页码:1950-1952
摘要	In MnAs(1-x)P(x) compounds (x = 0.006 and 0.01), prepared by mechanical alloying, the thermal hysteresis is greatly reduced from about 10-30K in MnAs-based compounds, prepared by conventional melting, to 2K for x = 0.01 (or 4K for x = 0.006). Such obvious hysteretic reduction is ascribed to the grain-size effect, largely due to the preparation method of mechanical alloying. Meanwhile, a maximum value of the magnetic-entropy change Delta S(M) of 11.3 J/kgK for a field change of 2 T is obtained at 294.5K for MnAs(0.994)P(0.006). The study on the MnAs(1-x)P(x) system and also the effect of the preparation technology may be beneficial for the realization of magnetic refrigerants for application at room temperature. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
部门归属	[sun, naikun; xu, songning] shenyang ligong univ, sch sci, shenyang 110159, peoples r china. [li, da; zhang, zhidong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [li, da; zhang, zhidong] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;sun, nk (reprint author), shenyang ligong univ, sch sci, shenyang 110159, peoples r china;naikunsun@gmail.com
关键词	Magnetocaloric Effect Mechanical Alloying Thermal Hysteresis Gd-5(Si2ge2) Transition Mnas
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30688
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	N. K. Sun,S. N. Xu,D. Li,et al. Magnetocaloric effect and size-effect related thermal hysteresis reduction in MnAs(1-x)P(x) compounds[J]. Physica Status Solidi a-Applications and Materials Science,2011,208(8):1950-1952.
APA	N. K. Sun,S. N. Xu,D. Li,&Z. D. Zhang.(2011).Magnetocaloric effect and size-effect related thermal hysteresis reduction in MnAs(1-x)P(x) compounds.Physica Status Solidi a-Applications and Materials Science,208(8),1950-1952.
MLA	N. K. Sun,et al."Magnetocaloric effect and size-effect related thermal hysteresis reduction in MnAs(1-x)P(x) compounds".Physica Status Solidi a-Applications and Materials Science 208.8(2011):1950-1952.

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