Defect formation and thermal expansion of perovskites on the basis of LaCrO3 for solid oxide fuel cells / Zuev A,Singheiser L,Hilpert K // . - 2003. - V. 2003, l. 7. - P. 817-831.

ISSN/EISSN:

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Type:

Proceedings Paper

Abstract:

Perovskites on the basis of LaCrO3 are of interest as ceramic interconnect materials for the development of Solid Oxide Fuel Cells (SOFCs). The interconnects are exposed to oxidising and reducing atmospheres under operating conditions. Oxygen vacancy formation was determined as a function of oxygen partial pressure between 1 bar and 10(-22) bar at temperatures between 900 and 1100degreesC. Different perovskite compositions made of (La,Ca/Sr)CrO3-delta, La(Cr,Mg)O3-delta, La(Cr,Mg/Cu/Co,Al)O3-delta, and (La,Ca)(Cr,Al)O3-delta were investigated. Defect models were evaluated to describe the oxygen vacancy formation and the respective thermodynamic data were determined. The results are used to explain existing literature data on the isothermal expansion of LaCrO3 based perovskites under reducing conditions.

Author keywords:

SYSTEM

DOI:

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Web of Science ID:

ISI:000186761000097

Соавторы в МНС:

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Другие поля

Поле	Значение
Editor	Singhal, SC and Dokiya, M
Booktitle	SOLID OXIDE FUEL CELLS VIII (SOFC VIII)
Series	ELECTROCHEMICAL SOCIETY SERIES
Note	8th International Symposium on Solid Oxide Fuel Cells, PARIS, FRANCE, APR 27-MAY 02, 2003
Organization	Electrochem Soc High Temp Mat, Battery \& Energy Technol Div; SOFC Soc Japan
Publisher	ELECTROCHEMICAL SOCIETY INC
Address	65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
Language	English
ISBN	1-56677-377-6
Keywords-Plus	SYSTEM
Research-Areas	Electrochemistry; Energy \& Fuels; Materials Science
Web-of-Science-Categories	Electrochemistry; Energy \& Fuels; Materials Science, Multidisciplinary
ResearcherID-Numbers	Zuev, Andrey/E-6220-2014
Number-of-Cited-References	13
Usage-Count-Since-2013	1
Doc-Delivery-Number	BX89X