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@ARTICLE{Bchler:55636,
author = {Büchler, O. and Serra, J. M. and Meulenberg, W. A. and
Sebold, D. and Buchkremer, H. P.},
title = {{P}reparation and properties of thin
{L}a1-x{S}rx{C}o1-y{F}ey{O}3-delta perovskitic membranes
supported on tailored ceramic substrates},
journal = {Solid state ionics},
volume = {178},
issn = {0167-2738},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-55636},
pages = {91 - 99},
year = {2007},
note = {Record converted from VDB: 12.11.2012},
abstract = {Mixed conducting La1-xSrxCo1-yFeyO3-delta (LSFC)
perovskites are promising materials for oxygen separation
membranes at high temperatures. Gaslight 10-20 mu m-thick
perovskite layers were produced by vacuum slip-casting and
screen printing on different porous substrates, i.e.
Ce0.8Gd0.2O1.9 (CGO), LSFC and composites of both. Some of
the substrates are doped with cobalt for enhancing the
mechanical stability and the shrinkage rate of the
substrate. The manufacturing of the substrates and the
different perovskitic asymmetric membranes are described in
detail. The microstructure, the chemical compatibility
between substrate and membrane, and the stability of the
sintered layers were analyzed by scanning electron
microscopy (SEM, EDX), SIMS and XRD at room temperature.
Also the shrinking rates, surface smoothness, porosity and
air permeance of the different substrate compositions are
characterized. SEM analysis of the sintered top-layers
showed a thickness of 10-20 mu m, only closed porosity after
sintering at 1200 degrees C and an He-leak rate in the range
between 10(-4) to 10(-6) mbar l s(-1) cm(-2). The thermal
expansion coefficient and electrical conductivity of the
membrane materials and the substrates are measured between
30 and 800 degrees C and oxygen flux measurements were
carried out in the range 750-900 degrees C. (c) 2006
Elsevier B.V. All rights reserved.},
keywords = {J (WoSType)},
cin = {IEF-1},
ddc = {530},
cid = {I:(DE-Juel1)VDB809},
pnm = {Rationelle Energieumwandlung / SOFC - Solid Oxide Fuel Cell
(SOFC-20140602)},
pid = {G:(DE-Juel1)FUEK402 / G:(DE-Juel1)SOFC-20140602},
shelfmark = {Chemistry, Physical / Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000244410000012},
doi = {10.1016/j.ssi.2006.11.015},
url = {https://juser.fz-juelich.de/record/55636},
}