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Date
2008-05-06Type
- Journal Article
ETH Bibliography
yes
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Abstract
A novel mathematical approach for defect concentration calculations proposed by Poulsen [F.W. Poulsen, Solid State Ionics, 129 (2000) 145] for oxides with rather small deviations from stoichiometry also applies to perovskite-type oxides with large ranges of oxygen nonstoichiometry. Point defect chemistry calculations have been performed for YBa2 Cu3 O6.5 + δ for which experimental equilibrium oxygen partial pressure isotherms are well known. The model applied in this work describes experimental results very well in the pO2 range of 1 0- 5 to 10 bar and for temperatures between 450 and 800 °C. Show more
Publication status
publishedExternal links
Journal / series
Materials Research BulletinVolume
Pages / Article No.
Publisher
ElsevierSubject
A. Oxides; A. Superconductors; B. Chemical synthesis; D. DefectsOrganisational unit
02509 - Laboratorium für Neutronenstreuung (LNS) / Laboratory for Neutron Scattering (LNS)
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ETH Bibliography
yes
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