This title appears in the Scientific Report :
2014
Please use the identifier:
http://dx.doi.org/10.1016/j.jeurceramsoc.2014.03.009 in citations.
Mechanical Properties of Porous MgO Substrates for Membrane Applications
Mechanical Properties of Porous MgO Substrates for Membrane Applications
Advanced design concepts for the application of oxygen transport ceramic membranes are based on thin layers supported by porous substrates. One suitable support material in this respect is porous MgO. However, a careful consideration of the mechanical stability is required to warrant long term perfo...
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Personal Name(s): | Lipinska-Chwalek, Marta |
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Kiesel, L. / Malzbender, Jürgen (Corresponding Author) | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEK-1 Werkstoffstruktur und -eigenschaften; IEK-2 |
Published in: | Journal of the European Ceramic Society, 34 (2014) 10, S. 2519-2524 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2014
|
DOI: |
10.1016/j.jeurceramsoc.2014.03.009 |
Document Type: |
Journal Article |
Research Program: |
Power Plants |
Publikationsportal JuSER |
Advanced design concepts for the application of oxygen transport ceramic membranes are based on thin layers supported by porous substrates. One suitable support material in this respect is porous MgO. However, a careful consideration of the mechanical stability is required to warrant long term performance and reliability under application relevant thermo-mechanical loads. The current work summarizes the effect of the sintering conditions on porosity and mechanical properties and gives elastic modulus and fracture stress as a function of temperature. An enhancement of the strength by the addition of boehmite to MgO was tested. Elastic moduli are determined and compared as obtained by indentation and bending tests. With respect to fracture, specimens in planar geometry are investigated using ring-on-ring bending tests; tubes are tested using an O-ring set-up. Fracture stresses are statistically analyzed. The obtained mechanical parameters are compared to that of other potential porous substrate materials. |