WANG Zuocheng, ZHANG Maocai, QIAO Yi, GAO Xuexum, LI Fubiao, ZHOU Shouzeng, and WANG Run, Nanocrystalline exchange-coupled Pr-Fe-B permanent magnets, J. Univ. Sci. Technol. Beijing, 4(1997), No. 3, pp. 11-13.
Cite this article as:
WANG Zuocheng, ZHANG Maocai, QIAO Yi, GAO Xuexum, LI Fubiao, ZHOU Shouzeng, and WANG Run, Nanocrystalline exchange-coupled Pr-Fe-B permanent magnets, J. Univ. Sci. Technol. Beijing, 4(1997), No. 3, pp. 11-13.
WANG Zuocheng, ZHANG Maocai, QIAO Yi, GAO Xuexum, LI Fubiao, ZHOU Shouzeng, and WANG Run, Nanocrystalline exchange-coupled Pr-Fe-B permanent magnets, J. Univ. Sci. Technol. Beijing, 4(1997), No. 3, pp. 11-13.
Citation:
WANG Zuocheng, ZHANG Maocai, QIAO Yi, GAO Xuexum, LI Fubiao, ZHOU Shouzeng, and WANG Run, Nanocrystalline exchange-coupled Pr-Fe-B permanent magnets, J. Univ. Sci. Technol. Beijing, 4(1997), No. 3, pp. 11-13.
State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China
中文摘要
Nanocomposite Pr2Fe14B/α-Fe permanent magnets were prepared by melt spinning and subsequent crystallizahon of Pr8Fe86B6, amorphous Precursnors. The microstructure is a two-phase nanocomposite of Pr2Fe14B and soft magnetic α-Fe with an average size of 30nm. X-ray diffration, Thermomagnetic analysis and TEM analysis indicate that amorphous Pr8Fe86B6, alloy crystallizes through the process of Am→Am'+α-Fe→Pr2Fe23B3+α-Fe-Pr2Fe14B+α-Fe. The highest value of remanence (Br), cocreivity (Hci) and maximum energy Product ((BH)max) of the nanocrystalline alloys are 1.10T, 340 kA/m and 110 kJ/m3 respechvely, exhibihng remarkable remanence enhancement. The effect of annaling temperature and time on the microstructure and magnetic properties was also studied. The results show that appropriate annealing temperature and time are important for obtaining the optimal microstructure and the bestmagnetic properties.
Nanocomposite Pr2Fe14B/α-Fe permanent magnets were prepared by melt spinning and subsequent crystallizahon of Pr8Fe86B6, amorphous Precursnors. The microstructure is a two-phase nanocomposite of Pr2Fe14B and soft magnetic α-Fe with an average size of 30nm. X-ray diffration, Thermomagnetic analysis and TEM analysis indicate that amorphous Pr8Fe86B6, alloy crystallizes through the process of Am→Am'+α-Fe→Pr2Fe23B3+α-Fe-Pr2Fe14B+α-Fe. The highest value of remanence (Br), cocreivity (Hci) and maximum energy Product ((BH)max) of the nanocrystalline alloys are 1.10T, 340 kA/m and 110 kJ/m3 respechvely, exhibihng remarkable remanence enhancement. The effect of annaling temperature and time on the microstructure and magnetic properties was also studied. The results show that appropriate annealing temperature and time are important for obtaining the optimal microstructure and the bestmagnetic properties.
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