| Structure and magnetic properties of mechanically alloyed Tb0.2Pr0.8（Fe0.4Co0.6）1.93 and magnetostriction of its epoxy composite |
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| 引用本文： | LIU Jinjun,LIU Xincai,PAN Jing,JIANG Chengyong. Structure and magnetic properties of mechanically alloyed Tb0.2Pr0.8（Fe0.4Co0.6）1.93 and magnetostriction of its epoxy composite[J]. 稀有金属(英文版), 2009, 28(1): 9-13. DOI: 10.1007/s12598-009-0003-9 |
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| 作者姓名： | LIU Jinjun LIU Xincai PAN Jing JIANG Chengyong |
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| 作者单位： | State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China |
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| 基金项目： | This project was financially supported by the National Natural Science Foundation of China （Nos. 50801039 and 50744014）. It was also supported by the Natural Science Foundation of Zhejiang Province （Nos. Y406389）, Ningbo City （Nos. 2007A610029 and 2005A610022） and K.C. Wong Magna Fund in Ningbo University. One of the authors （LIU Jinjun） gratefully acknowledges the help of Professor ZHANG Zhidong and Dr. REN Weijun （Institute of Metal Research, Chinese Academy of Sciences） in the manufacture of partial samples. |
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| 摘 要： |
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| 关 键 词： | 机械合金 磁致伸缩 结构 磁性质 |
Structure and magnetic properties of mechanically alloyed Tb0.2Pr0.8(Fe0.4Co0.6)1.93 and magnetostriction of its epoxy composite |
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| Jinjun Liu,Xincai Liu,Jing Pan,Chengyong Jiang. Structure and magnetic properties of mechanically alloyed Tb0.2Pr0.8(Fe0.4Co0.6)1.93 and magnetostriction of its epoxy composite[J]. Rare Metals, 2009, 28(1): 9-13. DOI: 10.1007/s12598-009-0003-9 |
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| Authors: | Jinjun Liu Xincai Liu Jing Pan Chengyong Jiang |
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| Affiliation: | (1) State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China |
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| Abstract: | The C15 Laves phase with composition Tb0.2Pr0.8(Fe0.4Co0.6)1.93 was synthesized by mechanical alloying (MA) and subsequent annealing process. The structure and magnetic properties of Tb0.2Pr0.8(Fe0.4Co0.6)1.93 were investigated by means of X-ray diffraction (XRD), a vibrating sample magnetometer, and a standard strain technique. The effect of annealing on the structure and magnetic properties was studied. The analysis of XRD shows that the high Pr-content Tb0.2Pr0.8(Fe0.4Co0.6)1.93 alloy with the single phase of MgCu2-type structure can be successfully synthesized by MA method. The sample annealed at 450°C is found to have a coercivity of 196 kA/m at room temperature. An epoxy/Tb0.2Pr0.8(Fe0.4Co0.6)1.93 composite was produced by a cold isostatic pressing technique. A large magnetostriction of 400 ppm, at an applied magnetic field of 800 kA/m, was found for the composite. The epoxy-bonded Tb0.2Pr0.8(Fe0.4Co0.6)1.93 composite combines a high magnetostriction with a significant coercivity, which is a promising magnetostrictive material. |
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| Keywords: | mechanical alloying magnetostriction structure magnetic properties magnetostrictive composites |
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