| Structure and Magnetocaloric Effect in Tb（ Co1-xSnx）2 Alloys |
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| 引用本文： | 庄应烘,邓健秋,李均钦,周开文,朱其明. Structure and Magnetocaloric Effect in Tb（ Co1-xSnx）2 Alloys[J]. 中国稀土学报(英文版), 2006, 24(3): 337-340. DOI: 10.1016/S1002-0721(06)60120-8 |
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| 作者姓名： | 庄应烘 邓健秋 李均钦 周开文 朱其明 |
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| 作者单位： | Institute of Materials Science Guangxi University Nanning 530004 China，Institute of Materials Science Guangxi University Nanning 530004 China，Department of Materials Science and Engineering Shenzhen University Shenzhen Key Laboratory of Special Functional Materials Shenzhen 518060 China，Institute of Materials Science Guangxi University Nanning 530004 China，Institute of Materials Science Guangxi University Nanning 530004 China |
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| 摘 要： | Recently,researchonmagnetocaloriceffect(MCE)hasattractedagreatdealofinterestinrare earth(RE)basedcompoundsbecauseoftheirenergy efficiencyandenvironmentalsafetyformagneticrefrig eration.Afirst ordermagneticphasetransitionwas foundintheintermetalliccompoundsRECo2(RE=Er,Ho,Dy)withMgCu2typestructure[1,2],leadingtoa largemagneticentropychangeforthesecompounds,whereasasecond ordertransitionwasfoundinTbCo2andGdCo2.IntheintermetalliccompoundsRECo2,theloweringofd electronconcentrationbythesubst…
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| 关 键 词： | 过渡金属复合物 磁热材料 稀土 磁热效应 结构 |
| 文章编号： | 1002-0721（2006）03-0337-04 |
| 收稿时间： | 2005-10-24 |
| 修稿时间： | 2006-03-02 |
Structure and Magnetocaloric Effect in Tb(Co1-xSnx)2 Alloys |
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| Yinghong , Jianqiu Deng, Junqin Li, Kaiwen Zhou,Qiming Zhu. Structure and Magnetocaloric Effect in Tb(Co1-xSnx)2 Alloys[J]. Journal of Rare Earths, 2006, 24(3): 337-340. DOI: 10.1016/S1002-0721(06)60120-8 |
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| Authors: | Yinghong Jianqiu Deng Junqin Li Kaiwen Zhou Qiming Zhu |
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| Affiliation: | aInstitute of Materials Science, Guangxi University, Nanning 530004, China;bDepartment of Materials Science and Engineering, Shenzhen University, Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, China |
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| Abstract: | The phases and magnetocaloric effect in the alloys Tb (Co1 - xSnx) 2 with x = 0, 0.025, 0.050, 0.075, 0.100were investigated by X-ray diffraction analysis and magnetization measurement. The substitution of Sn in TbCo2 was limited. The cubic MgCu2-type structure for the sample of TbCo2 was confirmed by the results of X-ray powder diffraction and the rest samples consist of the TbCo2 phase mainly, together with some TbCo3 and Tb5Sn3 impurity phases. The impurity phases increase with the increase of Sn contents. The magnetic phase transition in all samples keeps second-order transition. TC increases slightly by Sn substitution from 230 K of the alloy with x = 0 to 233 K of the alloy with x = 0. 050 and then a slight decrease for higher concentration of x. The maximum magnetic entropy change in the samples Tb (Co1- x change from 0 to 2.0 T. |
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| Keywords: | transition metal compounds magnetocaloric materials rare earths |
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