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000909349 037__ $$aFZJ-2022-03139
000909349 1001_ $$0P:(DE-Juel1)176867$$aZHOU, Wenyu$$b0$$eCorresponding author
000909349 245__ $$aMechanical properties of single and dual phase proton conducting membranes$$f - 2022-09-07
000909349 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2022
000909349 300__ $$aIV, VI, 133
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000909349 4900_ $$aSchriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment$$v584
000909349 502__ $$aDissertation, Univ. Twente, 2022$$bDissertation$$cUniv. Twente$$d2022
000909349 520__ $$aDual-phase hydrogen permeation membranes, consisting of protonic and electronic conducting phases, shows great potential for high purity hydrogen production due to its high stability in harsh applications. Hydrogen-ion conductive perovskite phases (e.g. BaCe0.65Zr0.2Y0.15O3-δ) and electron conductive fluorite oxides (e.g. Ce0.85Gd0.15O2-δ)  are promising candidate for this biphasic hydrogen transport membrane. Mechanical properties (e.g. elastic modulus, hardness, fracture toughness) of the membranes are essential parameters regarding the reliability of subsequent applications. These parameters are closely related to microstructural features such as grain size, phase  distribution and defects (e.g. pores and microcracks). However, these relationships are not yet fully understood. Therefore, in this thesis, the effects of grain size, phasedistribution, pores and microcracks on mechanical properties are investigated for BaCe0.65Zr0.2Y0.15O3-δ and BaCe0.65Zr0.2Y0.15O3-δ-Ce0.85Gd0.15O2-δ membranes. Material preparation procedures (e.g. milling and sintering) are optimized to overcome the difficulty in material preparation.
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000909349 9141_ $$y2022
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