This title appears in the Scientific Report :
2014
Please use the identifier:
http://dx.doi.org/10.1016/j.ceramint.2013.12.085 in citations.
Stability aspects of porous Ba0.5Sr0.5Co0.8Fe0.2O3−δ
Stability aspects of porous Ba0.5Sr0.5Co0.8Fe0.2O3−δ
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 al...
Saved in:
Personal Name(s): | Lipinska-Chwalek, Marta (Corresponding Author) |
---|---|
Schulze-Küppers, Falk / Malzbender, Jürgen | |
Contributing Institute: |
Werkstoffstruktur und -eigenschaften; IEK-2 Werkstoffsynthese und Herstellungsverfahren; IEK-1 |
Published in: | Ceramics international, 40 (2014) 5, S. 7395 - 7399 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2014
|
DOI: |
10.1016/j.ceramint.2013.12.085 |
Document Type: |
Journal Article |
Research Program: |
Power Plants |
Publikationsportal JuSER |
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. |