球磨法制备(Gd_(0.9)Dy_(0.1))_5Si_4粉末及分析  

(Gd_(0.9)Dy_(0.1))_5Si_4 powders produced by Ball milling

作　　者：张泽玉[1] 王贵[1] 王正德[2] 李保卫 黄焦宏[3] 刘金荣[3] 金培育[3] 邱巨峰[3] 徐来自[3] 

机构地区：[1]包头钢铁学院材料工程学院,内蒙古包头014010 [2]包头钢铁学院生物与化学工程系,内蒙古包头014010 [3]包头稀土研究院,内蒙古包头014010

出　　处：《包头钢铁学院学报》2002年第2期130-132,共3页Journal of Baotou University of Iron and Steel Technology

基　　金："九五"国家重点科技攻关项目 (99-A3 0 -0 1-0 7)

摘　　要：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 。A planetary mill was adopted for the continuous grinding of MCE material (Gd 0.9 Dy 0.1 ) 5Si 4 to gain namometer powders.Under some regulated conditions,the particle size is in direct proportion to time.And in this process the material was changed from crystalloid into noncrystalloid.When the particle size was reduced to namo level by ball milling,its magnetism died away sharply.Maybe it is due to the noncrystalloid and the stress

关 键 词：球磨法 制备 磁性材料 磁致冷材料 纳米粉末 

分 类 号：TF125.8[冶金工程—粉末冶金] TF123.111[冶金工程—冶金物理化学]