摘要
铵明矾加热分解可制得超细γ－Ａｌ２Ｏ３粉末，进一步灼烧可制得α－Ａｌ２Ｏ３微粉．实验发现。
Ultrafine γ-Al 2O 3 particles were prepared by thermal decomposition of ammonium alum. Subsequently, calcining them at higher temperature, α-Al 2O 3 powder was obtained. It was found that the powder, composed of α- and γ-Al 2O 3 particles, was better for sintering than pure γ- or α- Al 2O 3 powder.
出处
《杭州大学学报（自然科学版）》
CSCD
1998年第3期67-70,共4页
Journal of Hangzhou University Natural Science Edition
基金
浙江省分析测试基金
关键词
铵明矾
热分解
氧化铝
超细粉
烧桔性
ammonium alum
thermal decomposition
ultrafine particle
sintering
