Thermal and chemical expansion of mixed conducting La0.1Sr0.9Co0.8Fe0.2O3-δ

被引：0

作者：

Jeon, S. -Y. ^{[1
]}

Choi, M. -B. ^{[1
]}

Park, J. -Y. ^{[2
]}

Song, S. -J. ^{[1
]}

机构：

[1] Chonnam Natl Univ, Dept Mat Sci & Engn, Kwangju 500757, South Korea

[2] Sejong Univ, Dept Adv Mat Engn, Seoul 143747, South Korea

来源：

JOURNAL OF CERAMIC PROCESSING RESEARCH | 2011年 / 12卷 / 01期

关键词：

thermal expansion; perovskite; isothermal expansion; DOPED CERIUM OXIDE; OXYGEN PERMEATION;

D O I：

暂无

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：

The thermal and chemical expansion properties of La0.1Sr0.9Co0.8Fe0.2O3-delta, a potential candidate for oxygen permeable membranes and cathodes in solid oxide fuel cells (SOFC), are reported here. The isothermal expansion measurements were repeated over the oxygen partial pressure range of 10(-4) <= pO(2)/atm <= 0.21 and the temperature range of 700 <= T/degrees C <= 1000. The high-temperature chemical expansion of LSCF1982 was attributed to both volume expansion due to the increased ionic radii of the B-site cations and the increase of the oxygen nonstoichiometry.

引用

页码：26 / 29

页数：4

共 13 条

[1] Surface and bulk oxygen non-stoichiometry and bulk chemical expansion in gadolinium-doped cerium oxide [J].

Bishop, S. R. ;

Duncan, K. L. ;

Wachsman, E. D. .

ACTA MATERIALIA, 2009, 57 (12) :3596-3605

[2] Defect equilibria and chemical expansion in non-stoichiometric undoped and gadolinium-doped cerium oxide [J].

Bishop, S. R. ;

Duncan, K. L. ;

Wachsman, E. D. .

ELECTROCHIMICA ACTA, 2009, 54 (05) :1436-1443

[3]

Choi M.-B., SOLID STATE IN PRESS

[4] Combustion synthesis and characterization of LSCF-based materials as cathode of intermediate temperature solid oxide fuel cells [J].

Dutta, Atanu ;

Mukhopadhyay, Jayanta ;

Basu, R. N. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2009, 29 (10) :2003-2011

[5] Thermal expansion of Sr- and Mg-doped LaGaO3 [J].

Hayashi, H ;

Suzuki, M ;

Inaba, H .

SOLID STATE IONICS, 2000, 128 (1-4) :131-139

[6] Defect chemistry and oxygen permeation property of Pr2M0.75Cu0.25O4 oxide doped with Ga [J].

Ishihara, Tatsurni ;

Nakashima, Kenichi ;

Okada, Sachio ;

Enoki, Makiko ;

Matsumoto, Hiroshige .

SOLID STATE IONICS, 2008, 179 (27-32) :1367-1371

[7]

LEIN HL, 2006, SOLID STATE IONICS, V177, P19

[8]

MIYOSHI S, 2002, SOLID STATE IONICS, P154

[9] Thermal and chemical expansion properties of La0.2Sr0.8Fe0.55Ti0.45O3-x [J].

Park, CY ;

Jacobson, AJ .

SOLID STATE IONICS, 2005, 176 (35-36) :2671-2676

[10] STRUCTURE AND ELECTRICAL-PROPERTIES OF LA1-XSRXCO1-YFEYO3 .1. THE SYSTEM LA0.8SR0.2CO1-YFEYO3 [J].

TAI, LW ;

NASRALLAH, MM ;

ANDERSON, HU ;

SPARLIN, DM ;

SEHLIN, SR .

SOLID STATE IONICS, 1995, 76 (3-4) :259-271

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