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@INPROCEEDINGS{Rhrens:154851,
author = {Röhrens, Daniel and Büchler, Oliver and Sebold, Doris and
Schafbauer, Wolfgang and Franco, Thomas and Menzler, Norbert
H. and Buchkremer, Hans Peter},
title = {{M}icrostructural {A}nalysis of a metal-supported {SOFC}
after redox-cycling},
number = {15},
reportid = {FZJ-2014-04113},
pages = {B1206},
year = {2014},
comment = {Proceedings of the 11th European SOFC and SOE Forum 2014},
booktitle = {Proceedings of the 11th European SOFC
and SOE Forum 2014},
abstract = {A metal-supported SOFC (MSC) has been developed with the
aim of an application in an auxiliary power unit (APU) for
mobile systems. This cell design is expected to be more
robust towards thermo-, mechanical- and chemical stresses
that arise during operation of the SOFC-system when compared
to the state-of-the-art anode supported cells (ASC). One of
the most important cell degradation pathways is the
(partial) oxidation of the anode, due to oxygen diffusion
into the fuel side of the stack during system shutdown. The
oxidation of the nickel catalyst leads to an expansion of
the anode and strain is induced within the cell, which might
result in microstructural degradation if a critical degree
of oxidation is exceeded. MSC-halfcells were exposed to
cyclic oxidation conditions by introducing air to the fuel
side electrode followed by subsequent reduction in Ar/H2
$(4\%).$ A detailed microstructural analysis of the samples
is presented. Due to the novel MSC-concept, a higher
critical degree of oxidation of nickel is tolerated before
irreversible damage and cell failure are observed.},
month = {Jul},
date = {2014-07-01},
organization = {11th European SOFC and SOE Forum 2014,
Luzern (Switzerland), 1 Jul 2014 - 4
Jul 2014},
cin = {IEK-1},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {123 - Fuel Cells (POF2-123) / SOFC - Solid Oxide Fuel Cell
(SOFC-20140602)},
pid = {G:(DE-HGF)POF2-123 / G:(DE-Juel1)SOFC-20140602},
typ = {PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
url = {https://juser.fz-juelich.de/record/154851},
}