摘要
以工业氧化铝溶胶为原料,通过凝胶先驱体低温制备α-Al2O3纳米粉。研究了晶种、相变添加剂和研磨方式对α-Al2O3相变的影响以及分散剂的种类对粉体粒度的影响。结果表明,加入晶种、相变添加剂并采用醇磨的方式可在800℃下得到α-Al2O3纳米粉,用聚乙二醇作分散剂可将其晶粒度降至26.7nm。
Nano α-Al2O3 powder was prepared at low temperatue using industrial alumina Sol as starting material. The effects of grain seed, additive （ZnF2） and milling methods on phase transformation of α-Al2O3 and the effect of kinds of disperants on the size of α-Al2O3 powders were studied. The results indicate that 26.7nm α-Al2O3 can be prepared at 800oC with the grain seed, additive （ZnF2） addition, with poly glycol as disperant and by using alcohol as milling medium.
出处
《中国陶瓷》
CAS
CSCD
北大核心
2006年第2期21-24,共4页
China Ceramics
基金
河南省重点攻关计划项目资助(0523050800)
关键词
纳米α—Al2O3
晶种
添加剂
相变
nano α-Al2O3 powder
grain seed
addtive
phase transformation
