无机材料学报2001，Vol.16Issue(2)：349-352,4.
低温制备纳米α-Al2O3粉体
Preparation of Nano-sized Alumina Powders at Low Temperatures
摘要
Abstract
Alpha alumina nanocrystalline powders,with mean particle size less than 50nm,were prepared by a novel synthesis process using Al(NH3)3·9H2O and NH3·H2O solutions as raw mate-rials. The process mainly utilized a seed-effect of fine grains worn from the milling mediums and also utilized ZnF2 or AlF3 additives. The phase transformation temperatures to alpha alumina can be reduced dramatically to 900～920℃ by improving the homogeneity of seeds with the hydrous alumina and accelerating the mass diffusivity and transportation in the transformation process.关键词
氧化铝/相变/纳米粉体分类
通用工业技术引用本文复制引用
吴义权,张玉峰,黄校先,郭景坤..低温制备纳米α-Al2O3粉体[J].无机材料学报,2001,16(2):349-352,4.
