硅酸盐学报2012，Vol.40Issue(6)：866-871,6.
溶胶-凝胶法制备氧化铝-氧化锆复合粉体
Alumina-Zirconia Composite Powder Prepared by Sol-Gel Process
摘要
Abstract
A12O3-ZrO2 composite powders (A12O3 content of 51.74% in mass, ZrO2 content of 44.95% in mass) were synthesized by a sol-gel process using A1C13·6H2O and ZrOC12·8H2O as starting materials, and NH3.H2O as a precipitant. Chemical composition, mineral phase and particle size distribution of the composite powders were investigated by X-ray fluorescence instrument, X-ray diffractometer, thermogravimetric analyzer, laser particle size analyzer and scanning electron microscope. The results showed that the chemical composition of the alumina-zirconia composite powders synthesized by the sol-gel process were homogeneous and the particle size was fine (〈 0.5 μm about 5%, 0.5-5.0 μm about 55%, 〉 5.0 μm about 40%). The crystallization could be improved when the heat treatment temperature was increased. The main crystalline phase was t-ZrO2 at heat treatment temperature of 800 ℃ and that were lots of t-ZrO2, little corundum and trace c-ZrO2 at 1 2O0 ℃. The corundum and c-ZrO2 increased when heat treatment temperature was higher than 1 350 ℃.关键词
氧化铝/氧化锆/复合粉体/溶胶—凝胶工艺Key words
alumina/zirconia/composite powder/sol-gel process分类
化学化工引用本文复制引用
田晓利,薛群虎,薛崇勃..溶胶-凝胶法制备氧化铝-氧化锆复合粉体[J].硅酸盐学报,2012,40(6):866-871,6.基金项目
陕西省重点学科建设专项资金资助项目. （）
