Effect of Fe Content on the Structure and Properties of Sr-Fe-Co Oxides
作者： Xiang Hong Huang , Jun Qiao , Qian Feng Zhang
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.549.141
关键词: Analytical chemistry 、 Phase transition 、 Morphology (linguistics) 、 Scanning electron microscope 、 Microstructure 、 Brownmillerite 、 Crystallography 、 Particle 、 Materials science 、 Diffraction 、 Phase (matter)
摘要: SrFexCo0.5O3-δ (x=0.5, 0.75, 1.0, 1.25) powders have been synthesized by the solid state reaction process. The effect of Fe content on microstructure and properties were investigated in detail X-ray diffraction (XRD), scanning electron microscopy (SEM) thermo-gravimetric analysis differential calorimeters (TGA/DSC). XRD results reveal that phases SrFexCo0.5Oδ are dependent Fe. diffraction. SEM images show obtained similar morphology with particle structure uniform size distribution. phase transition from ordered brownmillerite to disorder perovskite is strongly TGA/DSC powders. Phase temperature increases 770°C 800°C x value increasing 1.0. But SrFe1.25Co0.5O3-δ powder maintains unchanged behaving good stability chemistry stability.
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