SOL-SPRAY TECHNIQUE FOR FINE-GRAINED CERIA PARTICLES

被引：16

作者：

MANI, TV ^{[1
]}

VARMA, HK ^{[1
]}

DAMODARAN, AD ^{[1
]}

WARRIER, KGK ^{[1
]}

机构：

[1] CSIR,REG RES LAB,TRIVANDRUM 695019,INDIA

来源：

CERAMICS INTERNATIONAL | 1993年 / 19卷 / 02期

关键词：

D O I：

10.1016/0272-8842(93)90085-6

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：

Submicron-range cerium oxide powders of narrow size distribution have been prepared by spray-drying of a sol derived from cerium nitrate. Cerium hydroxide is first precipitated by taking care to keep cerium in the Ce3+ state and later peptized to a stable sol at pH 3. The stability of the sol at different pH values was studied by nephelometry. Thermal-decomposition characteristics of spray-dried cerium hydroxide, the formation of the CeO2 phase, and the physical properties of calcined ceria, including particle size and distribution, are reported. A crystallite size as small as 100 angstrom could be obtained.

引用

页码：125 / 128

页数：4

共 14 条

[1] THE SOL-GEL PROCESS [J].