以氟化物为矿化剂,通过热处理使γ-Al2O3在气相传质下转变为小尺寸的板状α-Al2O3.利用XRD和SEM等手段,测定了板状氧化铝的特性,研究了制备工艺、HF含量、反应温度等因素对其特性的影响.结果表明:含AlF3 2%(质量分数)的混合料,在1100℃下保温180min可以得到直径为2μm的板状α-Al2O3.在此基础上,详细阐述了板状氧化铝的形成机理.
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