Preparation of porous mullite ceramics Using Al as Foaming Agent

被引：1
|
作者：
Yin, Jiazhi [1 ]
Liu, Jiachen [1 ]
Guo, Anran [1 ]
Song, Di [2 ]
Wang, Wenjun [2 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ, Tianjin 300072, Peoples R China
[2] China Coal Pingshuo Ind Coal Corp, Shuozhou 036000, Peoples R China
来源：
HIGH-PERFORMANCE CERAMICS VI | 2010年 / 434-435卷
关键词：
Porous ceramics; mullite; aluminum;
D O I：
10.4028/www.scientific.net/KEM.434-435.682
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：
Effects of Al in different added condition on pores shape and mullite configuration were investigated. Three sorts of hole were got by using Al as foaming agent in mullite composites. It was concluded that isolated holes could be formed by Al changing to Al(2)Ol(3) with acidity condition in green state, open holes could be formed by Al changing to Al2O3 directly in sintering process, and mixed hole of isolated and open ones could be formed by Al changing to Al(OH)(3) with alkalescence condition in green state followed changing to Al2O3 in sintering process. These holes could supply a position for growth of mullite as well.
引用
收藏
页码：682 / +
页数：2
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