کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1332838 | 979057 | 2008 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Phase equilibria and crystal structure of the complex oxides in the Sr–Fe–Co–O system Phase equilibria and crystal structure of the complex oxides in the Sr–Fe–Co–O system](/preview/png/1332838.png)
Phase relations in the Sr–Fe–Co–O system have been investigated at 1100 °C in air by X-ray powder diffraction on quenched samples. Solid solutions of the form SrFe1−xCoxO3−δ (0⩽x⩽0.7), Sr3Fe2−yCoyO7−δ (0⩽y⩽0.4) and Sr4Fe6−zCozO13±δ (0⩽z⩽1.6) were prepared by solid-state reaction and by the sol–gel method. The structural parameters of single-phase samples were refined by the Rietveld profile method. The variation of the lattice parameters with composition has been determined for each solid solution and a cross-section of the phase diagram at 1100 °C in air for the entire Sr–Fe–Co–O system has been constructed.
Isobaric–isothermal cross-section of phase diagram of the Sr–Fe–Co–O system at 1100 °C in air.Figure optionsDownload as PowerPoint slide
Journal: Journal of Solid State Chemistry - Volume 181, Issue 6, June 2008, Pages 1480–1484