采用d-HDDR（室温吸氢后＂氢化—歧化—脱氢—再复合＂）工艺制备Nd12.5Fe68.9-xCo12GaxZr0.1B6.5（x=0,0.1,0.3,0.5,0.7）永磁磁粉,研究了歧化......