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Solution Combustion Synthesis of Spinel Magnesium Aluminate and its Characterization for High Temperature Applications
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Solution combustion route was undertaken to synthesize phase pure spinel magnesium aluminate. High purity nitrate salt precursors were used in 2:1 molar ratio while citric acid was used as fuel and reducing agent for preparation after proper mixing of stoichometric salts and fuel agent. It was followed by drying at 80°C for 3-4 hours. Thermal analysis was carried to determine the crystallization formation of the phase. XRD analysis confirmed the phases developed after proper annealing at 650°C and 800°C for 5 hours. Morphology of the synthesized powders was analyzed using SEM while M-0 coordinations for bond formation were reported using FTIR spectra. EDX analysis confirmed the elements present in the synthesized material.
Keywords
Spinel, XRD Phase Analysis, M-O Coordinations, FTIR, EDX Analysis.
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