Oxygen permeability of perovskite-type BaBi1-xLaxO3-δ

被引：6

作者：

Yaremchenko, AA ^{[1
]}

Kharton, VV ^{[1
]}

Viskup, AP ^{[1
]}

Naumovich, EN ^{[1
]}

Samokhval, VV ^{[1
]}

机构：

[1] Belarusian State Univ, Inst Physicochem Problems, Minsk 220080, BELARUS

来源：

MATERIALS RESEARCH BULLETIN | 1998年 / 33卷 / 07期

关键词：

ceramics; oxides; electrical properties; ionic conductivity; thermal expansion;

D O I：

10.1016/S0025-5408(98)00071-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Oxygen permeability, electrical conductivity, and thermal expansion of BaBi1-xLaxO3-delta (x = 0, 0.2, and 0.4) perovskite-like solid solutions have been found to decrease with lanthanum content. Thermal expansion coefficients of the ceramics are (11.9-12.8) x 10(-6) K-1. Oxygen transport through the BaBi(La)O3-delta dense ceramic membranes within the membrane thickness range of 0.6 < d < 1.2 mm has been shown to be limited by both bulk ionic conductivity and surface exchange rate. (C) 1998 Elsevier Science Ltd.

引用

页码：1027 / 1033

页数：7

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