Fabrication and properties of mullite-bonded porous SiC membrane supports using bauxite as aluminum source

被引：37

作者：

Bai, Cheng-ying ^{[1
]}

Li, Yu ^{[1
]}

Liu, Zhang-min ^{[1
]}

Liu, Peng-wei ^{[1
]}

Deng, Xiang-yun ^{[1
,2
]}

Li, Jian-bao ^{[1
,3
]}

Yang, Jie ^{[1
]}

机构：

[1] Hainan Univ, Key Lab, Minist Educ Adv Mat Trop Isl Resources, Haikou 570228, Peoples R China

[2] Tianjin Normal Univ, Coll Phys & Mat Sci, Tianjin 300387, Peoples R China

[3] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2015年 / 41卷 / 03期

关键词：

D; Mullite; Bauxite; Membrane support; Reaction bonding; Porous SiC ceramic; SILICON-CARBIDE CERAMICS; BAYER PROCESS; POROSITY; COMPOSITES; STRENGTH;

D O I：

10.1016/j.ceramint.2014.11.129

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：

Mullite-bonded porous SiC membrane supports were fabricated at 1350-1500 degrees C in air from bauxite and graphite. The phase composition, open porosity, microstructure and mechanical strength as well as pore size distribution of membrane supports were systematically investigated. Due to the enhancement of necks at the contacting points growth by the addition of bauxite (30 wt%), a high three-point flexural strength of 85.2 MPa was achieved at an open porosity of 31.4%. Moreover, when 20 wt% C was added to the above composition, the strength of 36.6 MPa was achieved at an open porosity of 47.8%. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：4391 / 4400

页数：10

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