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MnFeP_(0.63)Ge(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03)化合物的磁热效应 被引量：6

MAGNETOCALORIC EFFECT IN MnFeP_(0.63)Ge_(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03)COMPOUNDS
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摘要 对MnFeP_(0.63)Ge_(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03,原子分数)化合物的结构和磁热效应(MCE)进行了研究.XRD分析结果表明:MnFeP_(0.63)Ge_(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03)的主相均为Fe_2P型六角结构,空间群为P62m.随着B含量的增加晶格常数a增大c减小,晶胞体积基本保持不变.磁性测量表明:随着B含量由0增加到0.03时,Curie温度(T_C)从300 K升到347 K,热滞分别为20,17,11和6 K.0-1.5 T外磁场下最大磁熵变△S_M分别为14.83,11.41,11.26和11.8 J/(kg·K). Structural and magnetocaloric properties of the MnFeP_（0.63）Ge_（0.12）Si_（0.25）B_x（x=0, 0.01,0.02,0.03,atomic fraction） compounds have been investigated.XRD result shows that the MnFeP_（0.63）Ge_（0.12）Si_（0.25）B_x（x=0,0.01,0.02,0.03） compounds mainly consist of the Fe_2P-type hexagonal structure phase with space group P62m.It is found that the lattice parameter a increases and the lattice parameter c slightly decreases with increasing x,and the unit cell volume does not change.The magnetic measurements show that the Curie temperature increases from 300 K to 347 K,and thermal hysteresis are 20,17,11 and 6 K for x= 0 to 0.03.The maximum values of the magnetic entropy change are 11.41,11.26 and 11.8 J/（kg·K）,respectively,for 0—1.5 T fields.
作者 王冬梅 松林 王耀辉 张伟 毕力格 特古斯
机构地区 内蒙古师范大学内蒙古自治区功能材料物理与化学重点实验室
出处 《金属学报》 SCIE EI CAS CSCD 北大核心 2011年第3期344-348,共5页 Acta Metallurgica Sinica
基金 国家自然科学基金项目50961010 内蒙古自然科学基金项目20080404ZD09 内蒙古师范大学研究生科研创新基金项目CXJJS10034资助~~
关键词 磁热效应 热滞 CURIE温度 相变 magnetocaloric effect thermal hysteresis Curie temperature phase transition
分类号 TM271.4 [一般工业技术—材料科学与工程]
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参考文献21

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共引文献37

同被引文献36

  • 1门德,松林,伊博乐,刘璟芳,伊日勒图,特古斯.MnP_(1-x)M_x系列合金的磁热效应[J].稀有金属,2010,34(1):137-140. 被引量：1
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  • 3王高峰,松林,李福安,哈斯朝鲁,李新文,特古斯.非化学计量比MnFe(P，Si，Ge)合金在低场下的磁热效应[J].金属学报,2007,43(8):889-892. 被引量：14
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引证文献6

二级引证文献14

金属学报
2011年 第3期

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