以采用水热晶化与荷电复合分散法制得的自分散型纳米 AlOOH 作为前驱物、碳酸铝铵热分解得到的纳米α-Al2O3作为晶种,利用AlOOH在水中具有良好的自分散性能,采用溶胶均匀分散混料法新工艺,将旷α-A12O3晶种均匀分散到纳米γ-A12O3晶体的溶胶中,在190℃水热下,使A100H转变成氧化铝,经930℃煅烧得到平均粒径为60nm的纳米α-Al2O3.利用XRD、TEM等手段分析研究了前驱物微细化及其分散性能对晶种的作用和氧化铝转型温度的影响.
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