Research in the Area of Preparing Activated Alumina. Part 5. Different Technological Approaches to the Process of Fine Milling of High-Alumina Raw Materials

被引：0
|
作者：
Trubitsyn, M. A. [1 ]
Volovicheva, N. A. [1 ]
Furda, L. V. [1 ]
Lisnyak, V. V. [1 ]
Kurbatov, A. P. [1 ]
Bondareva, I. A. [1 ]
机构：
[1] Belgorod State Natl Res Univ, Belgorod, Russia
来源：
REFRACTORIES AND INDUSTRIAL CERAMICS | 2023年 / 64卷 / 03期
关键词：
ball mill; dry grinding; milling-mechanism; alpha-alumina; antistatic effect; dispersion;
D O I：
10.1007/s11148-024-00839-z
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Results of studying the process of fine milling of alpha-Al2O3 in the presence of polyethylene glycol (PEG) and an antistatic composition are presented. It is shown that the main reason for agglomeration of fine particles is the effect of appearance of an electrostatic surface charge. Introduction of PEG prevents appearance of a "pseudo-viscous milling medium", removing the excess electrostatic charge at the surface of newly formed ultrafine particles, and also intensifies the wear process of primary alpha-alumina crystals. The antistatic composition successfully neutralizes a surface electrical charge, but does not exhibit a milling intensifier effect.
引用
收藏
页码：284 / 290
页数：7
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