纳米α-Al_2O_3化学合成技术研究进展  

Development of the Chemical Synthesis Techniques of α-Al_2O_3 Nanopowder

作　　者：宋晓岚[1] 曲鹏[1] 王海波[1] 吴雪兰[1] 邱冠周[1] 

机构地区：[1]中南大学资源加工与生物工程学院无机材料系,长沙410083

出　　处：《材料导报》2005年第5期14-16,共3页Materials Reports

基　　金：Supported by Hunan Province Nature Science Foundation of China(No.03JJY3015)and Foundation for University Key Teacher by the Ministry of Education(2000-06)

摘　　要：纳米α-Al_2O_3粉体因其用于高强材料、电子陶瓷以及催化剂等而具有广泛的应用潜力,然而经高温煅烧难于获得真正纳米粒径的α-Al_2O_3粉体。综述了近年来国外合成纳米α-Al_2O_3粉末的2种工艺:一种为高温化学合成工艺。包括气相沉积法、激光烧蚀法、电弧等离子体法和水热法等;另一种为低温化学合成工艺,包括机械球磨法和溶胶-凝胶法等。进一步展望了我国纳米α-Al_2O_3研究发展的趋势。Nanoscale α-Al_2O_3 powder has considerable potential for a wide range of applications including high strength materials,electronic ceramics,and catalysts.However,nanoscale α-Al_2O_3 powder is difficult to obtain.Two kinds of techniques used in the synthesis of nanoscale α-Al_2O_3 powder are reviewed in this paper.One is high-temperature chemical processing route,such as gas-phase condensation,laser ablation,arc plasma and hydrothermal,etc.The other is called low- temperature chemical processing route,such as mechanical milling and sol-gel etc.The development prospects of the resear- ches of α-Al_2O_3 nanopowders in China are further put forward.

关 键 词：纳米Α-AL2O3 技术研究进展 化学合成 AL2O3粉体 Al2O3粉末 电弧等离子体法 溶胶一凝胶法 合成工艺 气相沉积法 激光烧蚀法 机械球磨法 高强材料 应用潜力 电子陶瓷 高温煅烧 研究发展 催化剂 水热法 

分 类 号：TQ133.1[化学工程—无机化工] TQ637