PRODUCTION OF ULTRA-FINEα-AL2O3 PO WDERSFROM AMMONIUM A LUMINUM CARBONATE HY DROXIDE

金属学报(英文版), 1999, 12(5): 1194-1197.

PRODUCTION OF ULTRA-FINEα-AL2O3 PO WDERSFROM AMMONIUM A LUMINUM CARBONATE HY DROXIDE

F. Zhang1) , X. D. Sun1) , J. You2) , Z. Zhang2) , L. X. Ding3)and Y. M. Wang3)1) School of Materials and Metallurgy , Northeastern University , Shenyang 110006 , China2) Liaoning Analyzing and Testing Research Center , Shenyang 110015 , China3) Department of Materials , School of Mechanical Engineering , Shenyang University , Shenyang 110044 , China

Keywords： a m moniu m alu m inu m carbonate hydroxide , null , null , null

Synthesis of a m m oniu m alu min u m carbonate hydroxide ( A A C H) w as investigated usinga m m oniu m alu min u m sulfate and a m moniu m hydro carbonate as the starting m aterials . Itw as found that A A C Hcan be synthesized by adding a m m oniu m alu m inu m sulfate solution torapidly stirred a m moniu m hydro - carbonate solution at a tem perature of 30 ℃. A A C Hcantransfor m to α Al2 O3 co m pletely by calcining at 1100 ℃ for 1 hour , and the obtained po w ders , with a particle size of 100 n m , can be sintered to 98 99 % relative density at 1500 ℃for 2 hours .

参考文献

[1]

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

PRODUCTION OF ULTRA-FINEα-AL2O3 PO WDERSFROM AMMONIUM A LUMINUM CARBONATE HY DROXIDE

参考文献