Anisotropic ternary Pr(13)Fe(80)B(7) powders prepared by hydrogenation disproportionation desorption recombination process

作者：Han JZ^*; Liu SQ; Du HL; Yang JB; Yang YC

来源：Journal of Applied Physics, 2005, 97(10): 10F305.

DOI：10.1063/1.1852334

High-purity ternary Pr(13)Fe(80)B(7) magnetic powder with high anisotropy is obtained by a modified hydrogenation disproportionation desorption recombination (HDDR) process in this work. This powder exhibits a record-high B, of 1.05 T, and has a good crystal texture along the c axis. It is found that the formation of HDDR Pr(13)Fe(80)B(7) anisotropy is related to a rodlike disproportionation microstructure. We also show that by changing the HDDR conditions, an intrinsic coercivity of 800 kA/m and an energy product of 144 kJ/m(3) are obtained on this powder. The details of the modified HDDR process are also presented in this paper.

• 出版日期2005-5-15
• 单位北京大学