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MICROWAVE SYNTHESIS AND CHARACTERIZATION OF MIXED CONDUCTOR OXIDE SrFeCo_(0.5)O_y POWDER

Huo D

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Abstract

Mixed--conducting ceramic oxide of Sr-Fe-Co-O system were prepared by microwave heating and high temperature solid state reaction method in atmosphere, the powders were analyzed and characterized by powder X-ray diffraction, transmission electron microscopy coupled with EDX and scanning electron microscopy. The particle size distribution of the powder prepared by micromave heating is homogeneous, primary particle size is smaller, and crystallization is better than that prepared by solid state reaction method. The phases component of powders prepared by microwave heating are perovskite Sr(Fe,Co)1.5Oy, along with a little amount of orthorhombic Structure phase and spinel (Co,Fe)3O4. phase. A predominant orthorhombic phase Sr4Fe6-xCoxO13+ with a perovskite phase SrFe1-xCoxO3-- , and a face--centered Cubic phase CoO were observed in solid state reaction sample,

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What this paper is about

Mixed--conducting ceramic oxide of Sr-Fe-Co-O system were prepared by microwave heating and high temperature solid state reaction method in atmosphere, the powders were analyzed and characterized by powder X-ray diffraction, transmission electron microscopy coupled with EDX and scanning electron microscopy. The particle size distribution of the powder prepared by micromave heating is homogeneous, primary particle size is smaller, and crystallization is better than that prepared by solid state reaction method. The phases component of powders prepared by microwave heating are perovskite Sr(Fe,Co)1.5Oy, along with a little amount of orthorhombic Structure phase and spinel (Co,Fe)3O4. phase. A predominant orthorhombic phase Sr4Fe6-xCoxO13+ with a perovskite phase SrFe1-xCoxO3-- , and a face--centered Cubic phase CoO were observed in solid state reaction sample,

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Available abstract

Mixed--conducting ceramic oxide of Sr-Fe-Co-O system were prepared by microwave heating and high temperature solid state reaction method in atmosphere, the powders were analyzed and characterized by powder X-ray diffraction, transmission electron microscopy coupled with EDX and scanning electron microscopy. The particle size distribution of the powder prepared by micromave heating is homogeneous, primary particle size is smaller, and crystallization is better than that prepared by solid state reaction method. The phases component of powders prepared by microwave heating are perovskite Sr(Fe,Co)1.5Oy, along with a little amount of orthorhombic Structure phase and spinel (Co,Fe)3O4. phase. A predominant orthorhombic phase Sr4Fe6-xCoxO13+ with a perovskite phase SrFe1-xCoxO3-- , and a face--centered Cubic phase CoO were observed in solid state reaction sample,

Key concepts: Materials science, Orthorhombic crystal system, Perovskite (structure), Powder diffraction, Scanning electron microscope, Spinel, Particle size, Phase (matter)

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MICROWAVE SYNTHESIS AND CHARACTERIZATION OF MIXED CONDUCTOR OXIDE SrFeCo_(0.5)O_y POWDER — Research Paper | ScholarLens