Tape casting of nanocrystalline ceria gadolinia powder

被引：54

作者：

Meier, LP ^{[1
]}

Urech, L ^{[1
]}

Gauckler, LJ ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Lausanne, Switzerland

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2004年 / 24卷 / 15-16期

关键词：

tape casting; CeO2; fuel cell; nanoparticles;

D O I：

10.1016/j.jeurceramsoc.2004.01.002

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：

A ceramic ceria gadolinia solid solution membrane for solid oxide, fuel cells was fabricated by tape casting using a nanopowder of 37 nm average particle size. A novel combination of solvent and dispersant was used to disperse the nanoparticles. The polymer was added in a dilute stage to guarantee a homogeneous distribution. After casting a remarkable densification of the cast tape suspension from a solid loading of 20 up to 42 vol.% was observed during drying. The green tape was sintered to >92% theoretical density and was dense towards perfusion. The resulting grain size in the sintered specimen still was <200 nm. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：3753 / 3758

页数：6

共 35 条

[1] Using two-point correlation functions to characterize microgeometry and estimate permeabilities of sandstones and porous glass [J].