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采用行星式球磨机进行磁制冷材料 (Gd0 .9Dy0 .1) 5Si4的纳米粉末制备 在一定的球磨条件下 ,一定范围内颗粒粒度与球磨时间成正比 ,并最终制备出纳米级颗粒 但在此过程中 ,磁性材料的磁性完全消失 ,估计是由于材料的晶体结构转变为非晶状态和应力共同作用所致
Preparation of nano-powder of magnetic cooling material (Gd0.9Dy0.1) 5Si4 by planetary ball mill Under a certain ball milling condition, the particle size within a certain range is proportional to the ball milling time and finally the nano-scale particles are prepared, but in the process , The magnetic material completely disappeared, it is estimated that the material is due to the crystal structure into amorphous state and stress caused by the interaction