Magnetic Properties and Phase Transformation of Tb1-xPrxFe1.96 (x=0 to 0.7) Compounds

稀土学报(英文版), 2006, 24(2): 202-205.

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1.State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

2.State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

3.State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

4.State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

5.State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

基金项目: 国家高技术研究发展计划(863计划)(2002AA305305)

Magnetic Properties and Phase Transformation of Tb1-xPrxFe1.96 (x=0 to 0.7) Compounds

Keywords： giant magnetostrictive materials

The magnetic properties and the phase Transformation of Tb1-xPrxFe1.96 (x=0 to 0.7) compounds were studied by means of vibrating sample magnetometer(VSM), X-ray diffraction(XRD) and SEM back-scattered electron (BSE).The result indicates that the saturation magnetization σs of compounds along an easy axis decreases with the addition of Pr contents, which reduces from 77.24 Am2·kg-1 (x=0) to 11.84 Am2·kg-1 (x=0.5) and then returns to 37.14 Am2·kg-1 (x=0.7).The non-cubic phases appear when x exceeds 0.2, and the matrix of Tb1-xPrxFe1.96 compounds changes from (Tb, Pr)Fe2 phase with x=0 to (Tb, Pr)Fe3 phase with x=0.4, and at last to (Tb, Pr)2Fe17 phase in Tb0.3Pr0.7Fe1.96.Moreover, the structure of the compounds may become more complex with the increase of Pr content.

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Magnetic Properties and Phase Transformation of Tb1-xPrxFe1.96 (x=0 to 0.7) Compounds

参考文献