Effects of Synthesis Methods on the Microstructure and Properties of Perovskite-Type SrFeCoO_3-δ Oxides

Abstract:

The microstructure and properties of the perovskite-type SrFeCoO_3-δ (SFC) oxides synthesized by different methods were analyzed in detail in the paper. The oxide powders were synthesized by the citrate method (CM) and solid state reaction (SSR). X-ray diffraction (XRD) results reveal that the main crystal structure of the SFC powders is cubic structure SrFe_0.5Co_0.5O₃. Scanning electron microscopy (SEM) observation shows that the two kinds of powders have different grain morphologies and microstructure. Thermal gravimetric analysis and differential scanning calorimeters (TGA/DSC) results indicate that the composition loss and phase transition of the powders are related to the synthesis methods. The SFC powders synthesized by CM method show a more weight loss of various compositions than that synthesized by SSR method.

• Periodical: Advanced Materials Research (Volumes 554-556)
• Pages: 726-730
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.554-556.726
• Online since: July 2012
• Authors: Xiang Hong Huang, Jun Qiao, Qian-Feng Zhang
• Keywords: Microstructure, SrFeCoO_3-δ Oxides, Synthesis Method

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