Alumina nanopowder production from synthetic Bayer liquor

被引：34

作者：

Mazloumi, Mahyar ^{[1
]}

Khalifehzadeh, Razieh ^{[1
]}

Sadrnezhaad, S. K. ^{[1
]}

Arami, Hamed ^{[1
]}

机构：

[1] Sharif Univ Technol, Dept Mat Sci & Engn, Ctr Excellence Prod Adv Mat, Tehran 9466, Iran

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2006年 / 89卷 / 12期

关键词：

D O I：

10.1111/j.1551-2916.2006.01285.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Alkoxides are the most common precursors used for the production of alumina nanopowders. These materials are, however, expensive and corrosive. This paper introduces a new method for the production of alumina nanopowders by rapid cooling of a synthetic caustic sodium aluminate solution (Bayer liquor), followed by calcination in the presence of a surface-stabilizing agent like 1,2-dihydroxy-3,5-benzene disulfonic acid disodium salt (Tiron). The powders produced are characterized by differential thermal analysis, XRD, transmission electron microscopy, scanning electron microscope, and Brunauer-Emmet-Teller. A nanopowder of alpha-alumina with an average crystallite size of 27.7 nm and an average particle size of 50 nm is produced.

引用

页码：3654 / 3657

页数：4

共 32 条

[1] Factors controlling precipitation of finer size alumina trihydrate [J].