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Diffusionseigenschaften von Nickel in einer Festoxid-Brennstoffzelle

In this work, thermal grooving experiments were performed on anode microstructures, Ni polycrystals and Ni bicrystals. The grain boundary grooves were measured by means of an AFM. The results provide for the first time reliable values as well as the complete anisotropy of the relevant material param...

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Main Author: Haremski, Patricia
Format: Online
Language:German
Published: KIT Scientific Publishing 2022
Subjects:
solid oxide fuel cell
grain boundary energy
Festoxid-Brennstoffzelle
SOFC
Nickel
Diffusion
Korngrenzenergie
thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
Online Access:ONIX_20220218_9783731511243_15
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Summary:In this work, thermal grooving experiments were performed on anode microstructures, Ni polycrystals and Ni bicrystals. The grain boundary grooves were measured by means of an AFM. The results provide for the first time reliable values as well as the complete anisotropy of the relevant material parameters - the relative grain boundary energies and the surface diffusion coefficients - of nickel under realistic operating conditions of an SOFC anode.

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