高分子网络凝胶法制备纳米α-Al_2O_3粉体

Preparation of Nanoscale α-Al2O3 powders by the Polyacrylamide Gel Method

用高分子网络凝胶法制备Ａｌ２Ｏ３粉体，通过网络的阻碍作用，阻止Ａｌ２Ｏ３的团聚，获得颗粒大小在 １０ｎｍ左右的α－Ａｌ２Ｏ３粉体，其煅烧温度比通常低 １００℃．

Nanoscale α-Al2O3 powders were prepared by the polyacrylamide gel method. Because polymer-network inhibits the aggregate of Al2O3, nanoscale α-Al2O3 powders with about 10 nm size can be obtained. Its calcination temperature is 1100℃, which is 100℃ lower than general calcination temperature.