This title appears in the Scientific Report :
2014
Please use the identifier:
http://dx.doi.org/10.1016/j.jeurceramsoc.2014.05.013 in citations.
Thermomechanical Properties of Y-Substituted SrTiO$_{3}$ Used as Re-oxidation Stable Anode Substrate Material
Thermomechanical Properties of Y-Substituted SrTiO$_{3}$ Used as Re-oxidation Stable Anode Substrate Material
Re-oxidation robustness is important to warrant a reliable operation of anode-supported solid oxide fuel cell systems. The current work concentrates on the mechanical properties of re-oxidation stable Y-substituted SrTiO3 ceramic for the use as anode substrate material. Room temperature micro-indent...
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Personal Name(s): | Vasechko, V. |
---|---|
Huang, B. / Ma, Qianli / Tietz, Frank / Malzbender, Jürgen (Corresponding Author) | |
Contributing Institute: |
Werkstoffstruktur und -eigenschaften; IEK-2 Werkstoffsynthese und Herstellungsverfahren; IEK-1 |
Published in: | Journal of the European Ceramic Society, 34 (2014) 15, S. 3749-3754 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2014
|
DOI: |
10.1016/j.jeurceramsoc.2014.05.013 |
Document Type: |
Journal Article |
Research Program: |
Power Plants |
Publikationsportal JuSER |
Re-oxidation robustness is important to warrant a reliable operation of anode-supported solid oxide fuel cell systems. The current work concentrates on the mechanical properties of re-oxidation stable Y-substituted SrTiO3 ceramic for the use as anode substrate material. Room temperature micro-indentation yielded Young's modulus and hardness of 160 and 7 GPa, respectively, whereas the temperature-dependent modulus was measured with a resonance-based method up to ∼950 °C. The effective Young's modulus as a function of porosity was measured at room temperature and compared with fracture strength data. The fracture toughness was assessed using a combination of pre-indentation cracks and bending test. Creep rates were measured at 800 and 900 °C in a 3-point bending configuration. Post-test fractographic analysis performed using stereo, confocal and scanning electron microscopy, revealed important information on fracture origins and critical defects in the material. A methodology to assess the mechanical properties of porous materials is suggested. |