Oxidation studies of anodes layer microstructures in metal supported solid oxide fuel cells

Vasechko, Viacheslav; Roehrens, Daniel; Malzbender, Jürgen

doi:10.1016/j.ceramint.2015.01.015

Cited by 4 publications

(2 citation statements)

References 27 publications

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“…The investigated SOFC is an MSC type with a porous ferritic Cr-steel substrate, a Ni/YSZ anode layer and an 8YSZ electrolyte layer on top, which has been developed by Plansee SE [24,25,31]. A polished cross section of such a SOFC is shown in figure 1.…”

Section: Ecs Transactions 78 (1) 2293-2307 (2017)mentioning

confidence: 99%

“…Sintering causes tensile stresses in the deposited layer due to shrinkage in the range of 5 % to 15 % of the screen-printed material on the solid substrate [8 -10]. Sputtering is beneficial to produce very dense layer [5,14,24]. The high densification can be realized due to the high energy of each impacting particle, which leads to compressive stresses in the range of several hundreds of MPa in the deposited layer [13].…”

Section: Introductionmentioning

confidence: 99%

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An Analytical Model for Investigations on the Stress Distribution in Planar Solid Oxide Fuel Cells

et al. 2017

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An analytical model is presented to determine the residual stress distribution in planar Solid Oxide Fuel Cells (SOFCs). Usually, the residual stress in SOFCs is generated due to deposition processes of several layers in the manufacturing route and the CTE mismatch due to cooling from deposition to ambient temperature. In this model the deposition as well as the thermal stresses are considered in each layer. The final residual stress is obtained by adding the contributions of deposition and thermal stress. The investigated SOFC is an MSC type. After anode deposition, the total stress is in the tensile range. The electrolyte deposition results in large compressive stresses in the electrolyte but still tensile stress remains in the anode layer. This leads to the conclusion that thermal stress due to CTE mismatch has minor influence on the residual stress in contrast to the deposition stress. These observations hold for several parameter sets.

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Section: Ecs Transactions 78 (1) 2293-2307 (2017)mentioning

confidence: 99%