Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Steady state creep of Ni-8YSZ substrates for application in solid oxide fuel and electrolysis cells
Ist Teil von
Journal of power sources, 2017-08, Vol.360, p.1-10
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2017
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Steady state creep was characterized for Ni-8YSZ solid oxide fuel/electrolysis cell (SOFC/SOEC) substrate material. Intrinsic and extrinsic factors affecting creep behavior were assessed, such as compositional ratio, porosity and mechanical loading configuration. Mechanical tests were supported by analytical and numerical calculations. The results indicated a diffusion-dominated creep mechanism under both compressive and tensile creep conditions. Creep appeared to be dominated by the ceramic phase. Porosity significantly reduced creep resistance. The activation energy was discussed based on loading configuration, temperature and porosity.
•The creep of porous Ni-8YSZ anode substrates is investigated systematically.•The porosity, composition ratio and loading configuration have effects on creep.•The suitability of different testing methods is successfully analyzed.•Derived creep parameters can be used for materials' validation and modeling.