Preparation of acicular particles of α-alumina
- 1 July 1995
- journal article
- Published by Springer Science and Business Media LLC in Journal of Materials Research
- Vol. 10 (7), 1579-1581
- https://doi.org/10.1557/jmr.1995.1579
Abstract
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 °C. Acicular-shaped crystalline particles of Al(NH4)CO3(OH)2, (AACH), were obtained after the elongated aging period. Acicular α-alumina particles were obtained through the thermal decomposition at 1300 °C out of the AACH particles which were previously treated with a small amount of tetraethoxysilane (about 1.6 wt. % of SiO2).Keywords
This publication has 1 reference indexed in Scilit:
- Formation and Thermal Decomposition of Al(NH4)CO3(OH)2 Acicular MicrocrystalsJournal of the Ceramic Association, Japan, 1987