Effect of high magnetic field on the crystallization of Nd2Fe14B/α-Fe nanocomposite magnets

稀有金属（英文版）, 2006, 25(4): 337-341.

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

1.Institute of Materials Science, Shanghai University, Shanghai 200072, China;Department of Materials Engineering, Shanghai Institute of Technology, Shanghai 200235, China

2.Institute of Materials Science, Shanghai University, Shanghai 200072, China

3.Institute of Materials Science, Shanghai University, Shanghai 200072, China

4.Center of Test and Measurement, Shanghai University, Shanghai 200436, China

5.Institute of Materials Science, Shanghai University, Shanghai 200072, China

基金项目: 上海市科委资助项目(03QF14018) the National Advanced Technology Research and Development Committee of China(2002AA302602-2)

Effect of high magnetic field on the crystallization of Nd2Fe14B/α-Fe nanocomposite magnets

Keywords： magnetic materials

Nd8.1Dy0.9Fe76.95Co8.55B5.5 nanocomposite magnets annealed with and without a 10 T magnetic field were investigated in this article. The ribbons with coexisting amorphous and crystalline phases were selected to do this study. The results of Mossbauer spectroscopy revealed that the content of α-Fe increased when annealed in high strength magnetic field.The size of the grains also increased considerably after the application of magnetic annealing. All these led to the decrease of the magnetic properties, especially the coercivity of the ribbons.

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Effect of high magnetic field on the crystallization of Nd2Fe14B/α-Fe nanocomposite magnets

参考文献