Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1331870 | Journal of Solid State Chemistry | 2006 | 7 Pages |
Abstract
X-ray powder diffraction, Raman scattering, equilibrium oxygen content and conductivity data are combined to construct high-temperature phase diagrams (T vs. δ) for the oxide systems SrFe1−xGaxO2.5–SrFe1−xGaxO3, where x=0x=0, 0.1, and 0.2. Depending on oxygen content and gallium doping, three different structural types are shown to exist at high temperatures including cubic perovskite-, cubic brownmillerite-, and orthorhombic brownmillerite-type structures. Substitution of gallium for iron is shown to extend the oxygen content and temperature limits where the cubic brownmillerite-type phase is stable.
Graphical abstractThe high-temperature phase diagram for SrFeO3−δ.Figure optionsDownload full-size imageDownload as PowerPoint slide
Related Topics
Physical Sciences and Engineering
Chemistry
Inorganic Chemistry
Authors
I.A. Leonidov, M.V. Patrakeev, J.A. Bahteeva, E.B. Mitberg, V.L. Kozhevnikov, P. Colomban, K.R. Poeppelmeier,