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首页> 外文会议>6th International Conference on Magnetic Regrigeration at Room Temperature >STRUCTURAL AND MAGNETIC PROPERTIES OF Mn_(38)Fe_(22)Al_(40-x)B_x ALLOYS
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STRUCTURAL AND MAGNETIC PROPERTIES OF Mn_(38)Fe_(22)Al_(40-x)B_x ALLOYS

机译：Mn_（38）Fe_（22）Al_（40-x）B_x合金的结构和磁性能

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摘要

In this study, the crystal structure, magnetism and magnetocaloric effect of Mn_(38)Fe_(22)Al_(40-x)B_x alloys with x = 0, 1, 2, 3 and 4 were investigated. The alloys were prepared by arc melting and high-temperature solid-state reaction in Ar atmosphere. Room temperature X-ray diffraction study shows that the alloys crystallize in cubic CsCl(B2)-type structure (space group Pm-3m) . The alloys undergo a ferromagnetic to paramagnetic second-order phase transition. The Curie temperature (TC) changes with varying the boron concentration. The maximum magnetic-entropy change is about 0.67 J/kgK for x = 1 in a field change from 0 to 1.5 T at 292 K.
机译：在这项研究中，研究了x = 0、1、2、3和4的Mn_（38）Fe_（22）Al_（40-x）B_x合金的晶体结构，磁性和磁热效应。通过电弧熔化和在Ar气氛中进行高温固态反应来制备合金。室温X射线衍射研究表明，合金以立方CsCl（B2）型结构（空间群Pm-3m）结晶。合金经历铁磁至顺磁的二阶相变。居里温度（TC）随硼浓度的变化而变化。在292 K时从0到1.5 T的磁场变化中，x = 1时，最大磁熵变化约为0.67 J / kgK。

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  • 会议地点 Victoria(CA)
  • 作者

    Q. GUO; Z.Q. OU; L.H. BAO; W. WEI; ARIMUSHEN; L. SONG; O. TEGUS;

  • 作者单位

    Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, Hohhot, China, tegusph@imnu.edu.cn;

    Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, Hohhot, China;

    Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, Hohhot, China;

    Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, Hohhot, China;

    Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, Hohhot, China;

    Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, Hohhot, China;

    Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, Hohhot, China;

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  • 入库时间 2022-08-26 14:04:18

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