Workability and setting parameters evaluation of colloidal silica bonded refractory suspensions

被引：42

作者：

dos Anjos, R. D. ^{[1
]}

Ismael, M. R. ^{[1
]}

de Oliveira, I. R. ^{[1
]}

Pandolfelli, V. C. ^{[1
]}

机构：

[1] Univ Fed Sao Carlos, Dept Mat Engn, BR-13560 Sao Carlos, SP, Brazil

来源：

CERAMICS INTERNATIONAL | 2008年 / 34卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

suspensions; SiO2; Al2O3; refractories; colloidal silica;

D O I：

10.1016/j.ceramint.2006.09.004

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：

The efficiency of colloidal silica as a binder agent for castable matrix suspension in the presence of different setting agents and curing temperatures was evaluated. The tests were carried out trough rheometric techniques according to a systemic approach specifically developed for ceramic systems (oscillatory and normal force tests). Colloidal silica performed well as a binder agent for refractory suspensions when a suitable additive was selected. Among the additives analyzed, magnesium oxide was the most suitable for the evaluated systems. MgO addition in the range of 0.3-0.6 wt% and curing temperature of 25 degrees C were the suggested parameters for alumina and microsilica systems. (C) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：165 / 171

页数：7

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