Magnetic Agglomeration Among Nd-Fe-B Particles and Its
Influence on Field Aligning
HE Ye-Qing1, WANG Zhen-Xi1, ZHOU Shou-Zeng2, ZHANG Zhen-Rong3, HAN Bao-Shan3
1Beijing Zhong Ke San Huan High-Tech Co., Ltd., Beijing 100080
2State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083
3State Key Laboratory of Magnetism, Institute of Physics and Center of Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
Magnetic Agglomeration Among Nd-Fe-B Particles and Its
Influence on Field Aligning
HE Ye-Qing1;WANG Zhen-Xi1;ZHOU Shou-Zeng2;ZHANG Zhen-Rong3;HAN Bao-Shan3
1Beijing Zhong Ke San Huan High-Tech Co., Ltd., Beijing 100080
2State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083
3State Key Laboratory of Magnetism, Institute of Physics and Center of Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
Abstract： There exists strong magnetic agglomeration among Nd-Fe-B particles. Due to this effect, an applied field even up to 1350 kAm-1 still can not make the loose Nd-Fe-B powders to reach saturated magnetization. SEM images of a little amount of Nd-Fe-B powders were used to illustrate the agglomeration phenomenon. We believe that the general existence of misalignment grains in the magnetic force images of the sintered Nd-Fe-B magnet fabricated by die pressing with 1500 kAm-1 aligning field is a confirmation of the magnetic agglomeration.
HE Ye-Qing;WANG Zhen-Xi;ZHOU Shou-Zeng;ZHANG Zhen-Rong;HAN Bao-Shan. Magnetic Agglomeration Among Nd-Fe-B Particles and Its
Influence on Field Aligning[J]. 中国物理快报, 2004, 21(1): 191-193.
HE Ye-Qing, WANG Zhen-Xi, ZHOU Shou-Zeng, ZHANG Zhen-Rong, HAN Bao-Shan. Magnetic Agglomeration Among Nd-Fe-B Particles and Its
Influence on Field Aligning. Chin. Phys. Lett., 2004, 21(1): 191-193.
2004, Vol. 21 
