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无机材料学报

无机材料学报

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高分子网络凝胶法制备纳米α-Al2O3粉体

王宏志; 高濂; 李炜群; 李强   

  1. 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构开放实验室, 上海 200050
  • 收稿日期:1999-04-08 修回日期:1999-05-06 出版日期:2000-04-20 网络出版日期:2000-04-20

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

WANG Hong-Zhi; GAO LIAN; LI Wei-Qun; LI Qiang   

  1. State Key Lab of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:1999-04-08 Revised:1999-05-06 Published:2000-04-20 Online:2000-04-20

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摘要： 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℃．

关键词: 高分子网络凝胶法, 粉体, 氧化铝, 纳米

Abstract: 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.

Key words: the polyacrylamide gel method, powder, alumina, nanoscale

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