Journal of Changshu Institute of Technology2016，Vol.30Issue(4)：1-5,5.
Cr掺杂对Mn50Ni41Sn9合金的相变和磁热效应的影响
The Influence of Cr Doping on Phase Transformation and Magnetocaloric Effect in Mn50Ni41Sn9 Alloys
摘要
Abstract
Mn50Ni41-xCrxSn9 alloys are prepared by the arc melting method. Their structure, phase transitions, and magnetocaloric effect were investigated by using x-ray diffraction, vibrating sample magnetometer, and physical property measurement system. The martensitic transformation temperatures decrease with the substitution of Ni by Cr, which can be attributed to the decrease of valence electron concentration. The doping of Cr enhances the change of magnetization across the martensitic transformation, which implies a large magnetocaloric effect. The large magnetic entropy changes and adjustable working temperatures enable Mn50Ni41-xCrxSn9 alloys to have a po⁃tential application in magnetic refrigeration.关键词
马氏体转变/磁热效应/磁熵变Key words
martensitic transformation/magnetocaloric effect/magnetic entropy change分类
数理科学引用本文复制引用
涂锐康,董诗远,韩志达,房勇,钱斌,江学范..Cr掺杂对Mn50Ni41Sn9合金的相变和磁热效应的影响[J].Journal of Changshu Institute of Technology,2016,30(4):1-5,5.基金项目
国家自然科学基金项目“Ni-Mn基铁磁形状记忆合金的低温相分离和交换偏置效应研究”（51371004）；江苏省高校自然科学研究重大项目“高锰含量铁磁形状记忆合金的基态磁性和相关效应研究” （）
