Investigation of the coercivity mechanism for Nd-Fe-B based magnets prepared by a new technique of strip casting

稀有金属（英文版）, 2004, 23(2): 152-156.

^1, , ^2, , ^3, , ^4, , ^5,

1.Department of Functional Materials, Central Iron & Steel Research Institute, Beijing 100081, China

2.Department of Physics, Shandong University, J inan 250100, China

3.Department of Functional Materials, Central Iron & Steel Research Institute, Beijing 100081, China

4.Department of Functional Materials, Central Iron & Steel Research Institute, Beijing 100081, China

5.Department of Functional Materials, Central Iron & Steel Research Institute, Beijing 100081, China

基金项目: 国家自然科学基金(50271036)

Investigation of the coercivity mechanism for Nd-Fe-B based magnets prepared by a new technique of strip casting

Keywords： NdFeB magnet

The coercivity mechanism of Nd-Fe-B based magnets prepared by a new technique of strip casting was investigated. Different from the traditional magnets, α-Fe phases are difficult to be found in Nd-Fe-B magnets prepared by strip casting. Meanwhile, the rich-Nd phases occur not only near the grain boundaries of main phases, but also within the main-phase grains. Investigation on the magnetizing field dependence of the coercivity for the (Nd0.935Dy0.065)14.5Fe79.4B6.1magnet and the temperature dependence of the coercivity for the Nd14.5Fe79.4B6.1magnet have been done. Results show that coercivities for strip casting magnets are controlled by the nucleation mechanism.

参考文献

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Investigation of the coercivity mechanism for Nd-Fe-B based magnets prepared by a new technique of strip casting

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