This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1016/j.solidstatesciences.2007.05.004 in citations.
Chemical and physical properties of complex perovskites in the La0.8Sr0.2MnO3 - La0.8Sr0.2CuO2.4 - La0.8Sr0.2FeO3 system
Chemical and physical properties of complex perovskites in the La0.8Sr0.2MnO3 - La0.8Sr0.2CuO2.4 - La0.8Sr0.2FeO3 system
Perovskites resulting from discrete changes in composition within the quasi-temary system La0.8Sr0.2MnO3-delta-La0.8Sr0.2CUO2.4+delta-La0.8Sr0.2+FeO3-delta were investigated under constant experimental conditions with the objective of obtaining an overview of the variation of the properties relevant...
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Personal Name(s): | Zahid, M. |
---|---|
Arul Raj, I. / Tietz, F. / Stöver, D. | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEF-1 JARA-ENERGY; JARA-ENERGY |
Published in: | Solid state sciences, 9 (2007) S. 706 - 712 |
Imprint: |
Amsterdam [u.a.]
Elsevier
2007
|
Physical Description: |
706 - 712 |
DOI: |
10.1016/j.solidstatesciences.2007.05.004 |
Document Type: |
Journal Article |
Research Program: |
Solid Oxide Fuel Cell Rationelle Energieumwandlung |
Series Title: |
Solid State Sciences
9 |
Subject (ZB): | |
Publikationsportal JuSER |
Perovskites resulting from discrete changes in composition within the quasi-temary system La0.8Sr0.2MnO3-delta-La0.8Sr0.2CUO2.4+delta-La0.8Sr0.2+FeO3-delta were investigated under constant experimental conditions with the objective of obtaining an overview of the variation of the properties relevant for possible future applications. Nineteen nominal perovskite compositions within this system were systematically selected and synthesized under identical conditions by the Pechini method. The experimental data obtained on quantitative chemical analysis, powder X-ray diffraction, electrical conductivity and thermal expansion are presented collectively for the first time to facilitate comparisons. The formation and distribution of the different crystallographic phases at 950 degrees C within this quasi-ternary system are shown. The DC electrical conductivity is strongly influenced by the Cu content and increases up to 276 S cm(-1) for La0.8Sr0.2CUO2.4+delta. The thermal expansion is dominated by the Cu/Mn ratio and is almost independent of the Fe content. (C) 2007 Elsevier Masson SAS. All rights reserved. |