PREPARATION OF ACICULAR PARTICLES OF ALPHA-ALUMINA

被引：7

作者：

IGA, T

MURASE, Y

机构：

[1] Ceramic Science Department, National Industrial Research Institute of Nagoya

来源：

JOURNAL OF MATERIALS RESEARCH | 1995年 / 10卷 / 07期

关键词：

D O I：

10.1557/JMR.1995.1579

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Aluminum ammonium sulfate (AA) solution (0.1 mol/l) and ammonium hydrogen carbonate (AHC) solution (1.2 mol/l) were allowed to react at room temperature. The precipitates formed were kept with the mother liquor in a closed vessel and aged at 100 degrees C, Acicular-shaped crystalline particles of Al(NH4)CO3(OH)(2), (AACH), were obtained after the elongated aging period. Acicular alpha-alumina particles were obtained through the thermal decomposition at 1300 degrees C out of the AACH particles which were previously treated with a small amount of tetraethoxysilane (about 1.6 wt. % of SiO2).

引用

页码：1579 / 1581

页数：3