High-temperature compressive creep behaviour of perovskite-type oxides SrTi1-xFexO3-δ
| Autor: | Vasiliki Stournari, Henricus J.M. Bouwmeester, S.F.P. ten Donkelaar, Arian Nijmeijer, Jürgen Malzbender |
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| Přispěvatelé: | Inorganic Membranes |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Dislocation creep
Materials science Effective stress Oxygen transport Lattice diffusion coefficient Diffusion creep Perovskite Stress (mechanics) SrTiFeO (STF) Creep 2023 OA procedure Materials Chemistry Ceramics and Composites Forensic engineering Compressive creep Oxygen transport membrane (OTM) Composite material Perovskite (structure) |
| Zdroj: | Journal of the European Ceramic Society, 35(15), 4203-4209. Elsevier |
| ISSN: | 0955-2219 |
| DOI: | 10.1016/j.jeurceramsoc.2015.08.002 |
| Popis: | Compressive creep tests have been performed on mixed ionic-electronic conducting perovskite-type oxides SrTi1-xFexO3- (STF, x = 0.3, 0.5 and 0.7). Observed activation energies and stress exponents, at 800–1000 ◦C and in the stress range 10 100 MPa, indicate that the steady-state creep rate of STF under these conditions is predominantly limited by cation lattice diffusion (Nabarro-Herring creep). The effective stress exponents reflect a contribution of dislocation creep to the mechanism of creep in STF30 (x = 0.3). The observed creep rates are compared with those exhibited by related perovskite-type oxides, and are discussed in view of the possible application of STF as oxygen transport membrane (OTM). |
| Databáze: | OpenAIRE |
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