| Study on preparation technique and properties of magnetostrictive epoxy bonded Tb1-xPrx（Fe0.4Co0.6）1.93 composites |
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| 作者姓名： | 刘进军 刘新才 蒋成勇 潘晶 |
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| 作者单位： | State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science ＆ Chemical Engineering, Ningbo University, Ningbo315211, China |
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| 基金项目： | Project supported by the Natural Science Foundation of Zhejiang Province （Y406389）, the Foundation of Zhejiang Education Department （20070977）, the Natural Science Foundation of Ningbo （2007A610029 and 2005A610022） and K.C.Wong Magna Fund in Ningbo UniversityAcknowledgment： The authors thank Professor Zhang Zhidong for his help with the experimental works. |
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| 摘 要： | The magnetic and magnetostrictive properties of epoxy bonded Tb1-xPrx（Fe0.4Co0.6）1.93 （0.85≤x≤1.00） composites, prepared with different epoxy proportions using cold compression-molding technique, were investigated. It is found that the optimal conditions were with a compaction pressure of 100 MPa and a mass ratio of resin to powder of 5：100. The Tb0.1Pr0.9（Fe0.4Co0.6）1.93 composite rod had a high magnetostriction of 770 ppm at an applied magnetic field of 960 kA/m, whereas the Pr（Fe0.4Co0.6）1.93 composite reached 500 ppm at 400 kA/m. The good magnetostrictive properties of Pr（Fe0.4Co0.6）1.93 composite at low-field （≤400 kA/m） could be explained by its low anisotropy. These results indicated that the epoxy bonded Tb1-xPrx（Fe0.4Co0.6）1.93 rod samples for high Pr content of x=0.9-1.0 were of practical value.
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| 关 键 词： | 磁性材料 磁致伸缩 合成物 轻稀土 |
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