Preparation of SiC particles coated with alumina hydrate: Effect of reaction condition on particle coalescence

被引：4

作者：

Nakamura, H

Yoshinaga, M

Nagashima, S

Kato, A

机构：

[1] KYUSHU UNIV,FAC ENGN,DEPT CHEM SCI & TECHNOL,FUKUOKA 812,JAPAN

[2] AIST,KYUSHU NATL IND RES INST,DEPT INORGAN MAT,TOSU,SAGA 841,JAPAN

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 1996年 / 16卷 / 12期

关键词：

D O I：

10.1016/0955-2219(96)00065-9

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：

Alumina-hydrate-coated SiC particles were prepared via a homogenous precipitation method using urea, and the conditions for uniform coating and less coalescence of the particles were investigated. Coalescence of coated particles could be said to occur by collision and agglomeration followed by deposition of alumina hydrate on the agglomerated particles. Coalescence of coated particles was suppressed by use of low reaction temperature, low concentration of aluminium sulfate, high concentration of urea, intensive stirring, and a flow reactor. (C) 1996 Elsevier Science Limited

引用

页码：1329 / 1335

页数：7