Journal Article

FZJ-2016-00400

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Controlling the stress state of La1−xSrxCoyFe1−yO3−δ oxygen transport membranes on porous metallic supports deposited by plasma spray–physical vapor process

Marcano, D. (Corresponding author)FZJ* ; Mauer, G.FZJ* ; Sohn, Y. J.FZJ* ; Vassen, R.FZJ* ; Garcia-Fayos, J. ; Serra, J. M.

2016
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.memsci.2015.12.029

Abstract: 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.

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEK-1)

Research Program(s):

1. 113 - Methods and Concepts for Material Development (POF3-113) (POF3-113)

Appears in the scientific report 2016

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Database coverage:
; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; No Authors Fulltext ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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