Synthesis of pristine A1₂O₃ powder via self-propagating combustion method with various fuel sources

In this study, pristine A1₂O₃ powder was prepared by a simple self-propagating combustion (SPC) method. The effect of the different fuels on synthesized A1₂O₃ powder on thermal, structural, and morphological properties was investigated. The fuels utilized include formic, citric, oxalic, and tartaric acids. Based on the STA results, all precursors were annealed at 1100ºC for 24 hours to obtain pristine A1₂O₃ powder. XRD results show that all samples correspond to the α-A1₂O₃ crystal structure. Notably, differences in the morphology and particle size of all samples were observed through FESEM micrographs.