Novel fabrication processing of porous alumina/mullite membrane supports by combining direct foaming, sol-gel, and tape-casting methods

被引：16
作者：
Dong, Binbin [1 ]
Yang, Mingye [1 ]
Wang, Feihong [1 ]
Hao, Luyuan [1 ]
Xu, Xin [1 ]
Wang, Gang [2 ]
Agathopoulos, Simeon [3 ]
机构：
[1] Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China
[2] Sinosteel Luoyang Inst Refractories Res Co Ltd, State Key Lab Adv Refractories, Luoyang, Henan, Peoples R China
[3] Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece
来源：
MATERIALS LETTERS | 2019年 / 240卷
基金：
美国国家科学基金会;
关键词：
Porous materials; Ceramics; Membrane support; Foaming; Sol-gel; Tape-casting; CERAMIC MEMBRANES;
D O I：
10.1016/j.matlet.2018.12.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Porous alumina/mullite membrane supports (PAMS) were prepared by using direct foaming as pore foaming method, and silica sol-gel, combined with tape-casting, as a shaping method. The supports displayed a smooth surface and a porous internal structure, with spherical pores of 50-200 mu m in diameter and interconnecting pores of similar to 10 mu m in diameter. The supports sintered at 1600 degrees C exhibited a high bending strength of 13.4 +/- 0.7 MPa, an open porosity of 72.8%, and excellent N-2 and water permeation (4.5 x 10(7) and 4.1 x 10(5) Lm(-2) h(-1) bar(-1), respectively), which qualify them for further consideration in several practical applications. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：140 / 143
页数：4
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