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000017252 0247_ $$2DOI$$a10.1016/j.jeurceramsoc.2011.07.002
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000017252 084__ $$2WoS$$aMaterials Science, Ceramics
000017252 1001_ $$0P:(DE-Juel1)VDB71677$$aLipinska-Chwalek, M.$$b0$$uFZJ
000017252 245__ $$aMechanical Characterization of Porous Ba0.5Sr0.5Co0.8Fe0.2O3d
000017252 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2011
000017252 300__ $$a2997 - 3002
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000017252 440_0 $$03891$$aJournal of the European Ceramic Society$$v31$$x0955-2219$$y15
000017252 500__ $$aFinancial support from the Federal Ministry of Economics and Technology via the MEM-OXYCOAL project (grant no. 0327803) is gratefully acknowledged. The authors would like to thank W.A. Meulenberg and F. Schulze-Kuppers for preparing and providing the porous BSCF specimens and R. Kuppers for his experimental and technical support in the mechanical tests. In addition, most valuable SEM investigations provided by E. Wessel are gratefully acknowledged.
000017252 520__ $$aThe mechanical stability of porous Ba0.5Sr0.5Co0.8Fe0.2O3-d (BSCF) material was investigated using depth-sensitive microindentation and ring-on-ring biaxial bending tests. The porous BSCF was characterized as potential substrate material for the deposition of a dense membrane layer. Indentation tests yielded values for hardness and fracture toughness up to a temperature of 400 degrees C, while bending tests permitted an assessment of elastic modulus and fracture stress up to 800 degrees C. In addition the fracture toughness was evaluated up to 800 degrees C measuring in bending tests the fracture stress of pre-indented specimens. The results proof that the indentation-strength method can be applied for the determination of the fracture toughness of this porous material. In comparison to dense material the values of the mechanical parameters were as expected lower but the temperature dependences of elastic modulus, fracture strength and toughness were similar to those reported for dense BSCF. (C) 2011 Elsevier Ltd. All rights reserved.
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000017252 65320 $$2Author$$aMechanical properties
000017252 65320 $$2Author$$aFracture
000017252 65320 $$2Author$$aStrength
000017252 65320 $$2Author$$aPerovskites
000017252 65320 $$2Author$$aMembranes
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000017252 7001_ $$0P:(DE-Juel1)129755$$aMalzbender, J.$$b1$$uFZJ
000017252 7001_ $$0P:(DE-HGF)0$$aChanda, A.$$b2
000017252 7001_ $$0P:(DE-Juel1)129587$$aBaumann, S.$$b3$$uFZJ
000017252 7001_ $$0P:(DE-Juel1)VDB98094$$aSteinbrech, R.W.$$b4$$uFZJ
000017252 773__ $$0PERI:(DE-600)2013983-4$$a10.1016/j.jeurceramsoc.2011.07.002$$gVol. 31, p. 2997 - 3002$$p2997 - 3002$$q31<2997 - 3002$$tJournal of the European Ceramic Society$$v31$$x0955-2219$$y2011
000017252 8567_ $$uhttp://dx.doi.org/10.1016/j.jeurceramsoc.2011.07.002
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