TY  - JOUR
AU  - Marcano, D.
AU  - Mauer, G.
AU  - Sohn, Y. J.
AU  - Vassen, Robert
AU  - Garcia-Fayos, J.
AU  - Serra, J. M.
TI  - Controlling the stress state of La1−xSrxCoyFe1−yO3−δ oxygen transport membranes on porous metallic supports deposited by plasma spray–physical vapor process
JO  - Journal of membrane science
VL  - 503
SN  - 0376-7388
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2016-00400
SP  - 1 - 7
PY  - 2016
AB  - La0.58Sr0.4Co0.2Fe0.8O3-δ (LSCF), deposited on a metallic porous support by plasma spray–physical vapor deposition (PS–PVD) is a promising candidate for oxygen-permeation membranes. However, after O2 permeation tests, membranes show vertical cracks leading to leakage during the tests. In the present work, one important feature leading to crack formation was identified. More specifically; membrane residual stress changes during thermal loading were found to be related to a phase transformation in the support. In order to improve the performance of the membranes, the metallic support was optimized by applying an appropriate heat treatment. The observed oxygen fluxes during permeation tests had infinite selectivity and were amongst the highest fluxes ever measured for LSCF membranes in the thickness range of 30 μm, supported by LSCF porous substrates.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000369494100001
DO  - DOI:10.1016/j.memsci.2015.12.029
UR  - https://juser.fz-juelich.de/record/280635
ER  -