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Determination of the magnetocaloric effect associated with martensitic transition in Ni46CunMn38Sn12 and Ni50CoMn34In15 Heusler alloys
  • ISSN号：1674-1056
  • 期刊名称：《中国物理B：英文版》
  • 时间：0
  • 分类：TG139.6[金属学及工艺—合金;一般工业技术—材料科学与工程;金属学及工艺—金属学] TB64[一般工业技术—制冷工程]
  • 作者机构：[1]Department of Physics, Shanghai University, Shanghai 200444, China
  • 相关基金：Project supported by the Science Foundation of Surface Physics Laboratory （National Key Laboratory） of Fudan University （Grant No. FDS2008-B01）, the Graduate Innovation Foundation of Shanghai University （Grant Nos. SHUCX101065 and SHUCX102011） and the National Natural Science Foundation of China （Grant Nos. 50932003 and 10804068）.
作者： 李哲[1], 敬超[1], 张浩雷[1], 曹世勋[1], 张金仓[1]
关键词： 马氏体相变, 哈斯勒合金, 磁热效应, HEUSLER合金, Maxwell关系, 测定, 克拉珀龙方程, 公民教育, Heusler alloy, martensitic transition, magnetocaloric effect
中文摘要：

This paper presents a study of the inverse magnetocaloric effect (MCE) corresponding to martensitic transition using various experimental approaches for Ni46Cu4Mn38Sn12 and Ni50CoMn34In15 Heusler alloy. Through heat capacity measurements,it is found that the "giant inverse MCE" upon martensitic transition evaluated by the Maxwell relation in these alloys are unphysical results. This is due to the coexistence of both martensitic and austenitic phases,as well as thermal hysteresis during martensitic transition. However,careful study indicates that the spurious results during martensitic transition can be removed using a Clausius-Clapeyron equation based on magnetization measurements.

英文摘要：

This paper presents a study of the inverse magnetocaloric effect （MCE） corresponding to martensitic transition using various experimental approaches for Ni46Cu4Mn38Sn12 and NisoCoMn34In]5 Heusler alloy. Through heat capacity measurements, it is found that the ＂giant inverse MCE＂ upon martensitic transition evaluated by the Maxwell relation in these alloys are unphysical results. This is due to the coexistence of both martensitic and austenitic phases, as well as thermal hysteresis during martensitic transition. However, careful study indicates that the spurious results during martensitic transition can be removed using a Clausius Clapeyron equation based on magnetization measurements.

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期刊信息
  • 《中国物理B：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会和中国科学院物理研究所
  • 主编：欧阳钟灿
  • 地址：北京 中关村 中国科学院物理研究所内
  • 邮编：100080
  • 邮箱：
  • 电话：010-82649026 82649519
  • 国际标准刊号：ISSN：1674-1056
  • 国内统一刊号：ISSN：11-5639/O4
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:406