Alumina sols of different content were prepared by using Al(O-Sec-Bu)3 as precusor, water as solvent and nitric acid as peptizer.

• 以异丁醇铝为前驱物、水为溶剂、硝酸为胶溶剂制备了不同浓度的氧化铝溶胶，进而采用提拉法和旋覆法制备了致密氧化铝膜。