TY  - JOUR
AU  - Lipinska-Chwalek, Marta
AU  - Schulze-Küppers, Falk
AU  - Malzbender, Jürgen
TI  - Stability aspects of porous Ba0.5Sr0.5Co0.8Fe0.2O3−δ
JO  - Ceramics international
VL  - 40
IS  - 5
SN  - 1873-3956
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2014-02860
SP  - 7395 - 7399
PY  - 2014
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000333488100126
DO  - DOI:10.1016/j.ceramint.2013.12.085
UR  - https://juser.fz-juelich.de/record/153213
ER  -