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@ARTICLE{Joos:201166,
author = {Joos, Jochen and Ender, Moses and Rotscholl, Ingo and
Menzler, Norbert H. and Ivers-Tiffée, Ellen},
title = {{Q}uantification of double-layer {N}i/{YSZ} fuel cell
anodes from focused ion beam tomography data},
journal = {Journal of power sources},
volume = {246},
issn = {0378-7753},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2015-03471},
pages = {819 - 830},
year = {2014},
abstract = {Three-dimensional microstructure reconstructions of
Ni–yttria-stabilized zirconia (Ni/YSZ) anodes are
presented, all of which are based on focused ion beam
tomography data.The reconstruction procedure, starting from
a series of 2D scanning electron micrographs, is
investigated step by step and potential sources of error are
identified. The distinction between Ni phase, YSZ phase and
pore phase is solved by an advanced algorithm, which belongs
to the region-growing image segmentation methods. This
improves the accuracy of automated grayscale segmentation
especially for images with low contrast, which is
characteristic of both solid phases in Ni/YSZ
anodes.Critical microstructure parameters like material
fractions, surface areas, particle size and distribution of
Ni, YSZ, and pore phase, as well as phase connectivity and
triple-phase boundary density, are evaluated and
discussed.In this contribution, two types of
high-performance Ni/YSZ anodes – differing in thickness of
both the anode functional layer and the anode substrate –
are reconstructed and compared to each other. For the first
time, the anode functional layer adjacent to the thin film
electrolyte is separately quantified. The presented methods
are qualified to quantitatively compare different anode
microstructures and relate the result to their
electrochemical performance.},
cin = {IEK-1},
ddc = {620},
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)16},
UT = {WOS:000326661100102},
doi = {10.1016/j.jpowsour.2013.08.021},
url = {https://juser.fz-juelich.de/record/201166},
}