%0 Journal Article
%A Lipinska-Chwalek, Marta
%A Schulze-Küppers, Falk
%A Malzbender, Jürgen
%T Stability aspects of porous Ba0.5Sr0.5Co0.8Fe0.2O3−δ
%J Ceramics international
%V 40
%N 5
%@ 1873-3956
%C Amsterdam [u.a.]
%I Elsevier Science
%M FZJ-2014-02860
%P 7395 - 7399
%D 2014
%X Porous substrates are a prerequisite for advanced oxygen transport membranes. In particular, phase stability and mechanical robustness are of concern for long term performance and reliability. These aspects were investigated for porous Ba0.5Sr0.5Co0.8Fe0.2O3−δ material using annealing experiments along with microstructural investigations, depth-sensitive micro-indentation and ring-on-ring bi-axial bending tests. Annealing studies revealed phase instabilities at elevated temperatures that were also characterized by X-ray diffraction analysis. Elastic modulus and fracture stress were strongly affected by the porosity, whereas their temperature dependency agreed with the behavior of dense material.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000333488100126
%R 10.1016/j.ceramint.2013.12.085
%U https://juser.fz-juelich.de/record/153213