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To synthesize micro-sized and high crystalline α-alumina particles with uniformly and rapidly at low temperatures, various concentrated AlF 3 seeds were added into an anhydrous ethanol solution saturated by an aluminum hydroxide starting material, gibbsite Al(OH) 3 . Hexagonal shaped α-alumina powders highly crystallized were observed at lower temperature of 750°C, in the ranges from...
This study demonstrates the synthesis of α-Al 2 O 3 by sol–gel method according to various reaction parameters. Various Al 2 O 3 phases were synthesized by a simple sol–gel method using three different aluminum precursors (aluminum isoporoxide (AIP), Al(OH) 3 , and AlO(OH)) and pHs (3, 7, and 9). Thermally treating of the synthesized powders at 1200°C produced...
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