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000255662 1001_ $$0P:(DE-Juel1)145015$$aZhang, Jizu$$b0$$ufzj
000255662 245__ $$aMechanical Characterization of Micro- and Nano-Porous Alumina
000255662 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2015
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000255662 520__ $$aAdvanced membrane concepts are based on thin layers that require a mechanically robust porous substrate material. Aiming at the use in pre-combustion systems, alumina substrate with different pore sizes were characterized with respect to their mechanical properties. Elastic moduli and fracture stresses were assessed using ring-on-ring bending tests. Furthermore, elastic moduli were compared to data obtained from indentation tests. Although porosity of the micro- and nano-porous materials were equal, elastic moduli and fracture stress values revealed significant differences, indicating that based on mechanical considerations the nano-porous material is far superior, although initial permeation test indicate difficulties in using it as porous substrate. Elastic moduli showed good agreement with a model based on the load-bearing contact area. Microstructural investigations supported that the higher strength of the nano-porous material is a result of a larger contact area between grains.
000255662 536__ $$0G:(DE-HGF)POF3-111$$a111 - Efficient and Flexible Power Plants (POF3-111)$$cPOF3-111$$fPOF III$$x0
000255662 536__ $$0G:(DE-Juel1)HITEC-20170406$$aHITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406)$$cHITEC-20170406$$x1
000255662 7001_ $$0P:(DE-Juel1)129755$$aMalzbender, Jürgen$$b1$$eCorresponding author$$ufzj
000255662 773__ $$0PERI:(DE-600)2018052-4$$a10.1016/j.ceramint.2015.05.007$$n9$$p10725-10729$$tCeramics international$$v41$$x0272-8842$$y2015
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