Magnetic Phase Transition and Magnetocaloric Effect in Co-Doped Mn-Ni-Ge Melt-Spun Ribbons

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	Magnetic Phase Transition and Magnetocaloric Effect in Co-Doped Mn-Ni-Ge Melt-Spun Ribbons
	X. G.; Tong Zhao, M.; Shih, C. W.; Chang, W. C.; Liu, W.; Zhang, Z. D.
	2014
发表期刊	Ieee Transactions on Magnetics
ISSN	0018-9464
卷号	50 期号:11
摘要	The effects of Co substitution for Ni on Curie temperature T-C, magnetic and magnetocaloric properties of Mn1.05Ni0.85-x CoxGe (x = 0-0.85) alloy ribbons prepared by melt-spinning have been investigated by means of X-ray diffraction and magnetization measurements. All the as-spun Mn1.05Ni0.85-xCoxGe (x = 0-0.85) ribbons crystallize in hexagonal Ni2In-type structure at room temperature. The magnetic measurements at 100 K show that the as-spun ribbons exhibit good soft-magnetic behaviors with coercivity < 100 Oe. No martensitic magnetostructural transition can be observed in magnetization versus temperature M-T curves, whereas the Curie temperature T-C of the ferromagnetic to paramagnetic transitions of these ribbons increases from 205 K for x = 0 to 295 K for x = 0.85. The peak values of the maximal magnetic entropy changes (- Delta S-M) decrease from 6.0 to 3.4 J/kg K around T-C, under a field change of 0-50 kOe as x increases from 0 to 0.85, while the value of refrigeration capacity varies in the range of 170-250 J/kg.
部门归属	[zhao, xinguo ; tong, min ; liu, wei ; zhang, zhidong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [zhao, xinguo ; shih, chih wei ; chang, wen cheng] natl chung cheng univ, dept phys, chiayi 621, taiwan. ; zhao, xg (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; xgzhao@imr.ac.cn
关键词	Magnetic Property Magnetocaloric Effect (Mce) Melt-spun Ribbon Phase Transition Crystal
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74037
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. G.,Tong Zhao, M.,Shih, C. W.,et al. Magnetic Phase Transition and Magnetocaloric Effect in Co-Doped Mn-Ni-Ge Melt-Spun Ribbons[J]. Ieee Transactions on Magnetics,2014,50(11).
APA	X. G.,Tong Zhao, M.,Shih, C. W.,Chang, W. C.,Liu, W.,&Zhang, Z. D..(2014).Magnetic Phase Transition and Magnetocaloric Effect in Co-Doped Mn-Ni-Ge Melt-Spun Ribbons.Ieee Transactions on Magnetics,50(11).
MLA	X. G.,et al."Magnetic Phase Transition and Magnetocaloric Effect in Co-Doped Mn-Ni-Ge Melt-Spun Ribbons".Ieee Transactions on Magnetics 50.11(2014).