Model for milling of powders

被引：31
|
作者：
Kurlov, A. S. [1 ]
Gusev, A. I. [1 ]
机构：
[1] Russian Acad Sci, Inst Solid State Chem, Ural Branch, Ekaterinburg 620990, Russia
来源：
TECHNICAL PHYSICS | 2011年 / 56卷 / 07期
基金：
俄罗斯基础研究基金会;
关键词：
MECHANICAL ATTRITION; METALS; SIZE;
D O I：
10.1134/S1063784211070152
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A model is proposed for mechanical milling of powders that relates the applied energy to average particle size D in the powders. It is shown that the milling energy is consumed for the rupture of interatomic bonds in crystalline particles and for the creation of an additional surface during powder fragmentation. The appearance of microstrains E > retards powder fragmentation. Average particle size D after milling decreases with increasing milling time t and decreasing particle size in the initial powder or its mass M. The calculated results are compared to the experimental data obtained on a tungsten carbide WC powder.
引用
收藏
页码：975 / 980
页数：6
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