The combination of the internal combustion engine for drive purposes with an auxiliary power unit (APU) for the electrical vehicle on-board power supply is seen as a particularly promising future automotive concept. Although a first demonstration vehicle has already been realized, the market launch of APUs based on solid electrolyte fuel cells (SOFC) depends very much on the use of an economical manufacturing process suitable for series production. To obtain 2-dimensional images of the heat distribution on SOFC surfaces during plasma spraying, a vacuum-sealed IR-camera was implemented in the low pressure vacuum plasma spraying chamber. The thermographic data obtained should be used as boundary conditions for a finite element model in order to calculate the stresses in the ceramic fuel cells resulting from the plasma spraying process. Paper includes a German-language abstract.

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