SINTERING OF SOL-GEL-PREPARED SUBMICROMETER PARTICLES STUDIED BY TRANSMISSION ELECTRON-MICROSCOPY

被引：116

作者：

CHU, X ^{[1
]}

CHUNG, WI ^{[1
]}

SCHMIDT, LD ^{[1
]}

机构：

[1] UNIV MINNESOTA,DEPT CHEM ENGN & MAT SCI,MINNEAPOLIS,MN 55455

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1993年 / 76卷 / 08期

关键词：

D O I：

10.1111/j.1151-2916.1993.tb08344.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：

We studied the sintering processes of sol-gel-prepared monodisperse submicrometer CeO2 spheres by examining the microstructural changes of single spherical particles after successive heat treatment in oxygen up to 850-degrees-C using transmission electron microscopy. Steps of organic phase removal, CeO2 crystallization, grain growth, and particle condensation were clearly illustrated. Grain-size and sphere-diameter changes were measured quantitatively using this technique. CeO2 particles were found to be highly porous until collapse, which occurred at approximately 850-degrees-C.

引用

页码：2115 / 2118

页数：4

共 5 条

[1]

AKINC M, 1987, ADV CERAM MATER, V2, P232

[2]

Brinker C.J., 1990, SOL GEL SCI, P675

[3] MICROSTRUCTURE AND REACTIVITY OF PT-CE AND RH-CE PARTICLES ON SILICA [J].

CHOJNACKI, T ;

KRAUSE, K ;

SCHMIDT, LD .

JOURNAL OF CATALYSIS, 1991, 128 (01) :161-185

[4] PREPARATION AND PROPERTIES OF MONODISPERSED COLLOIDAL PARTICLES OF LANTHANIDE COMPOUNDS .2. CERIUM(IV) [J].

HSU, WP ;

RONNQUIST, L ;

MATIJEVIC, E .

LANGMUIR, 1988, 4 (01) :31-37

[5] PREPARATION AND PROPERTIES OF MONODISPERSED COLLOIDAL PARTICLES OF LANTHANIDE COMPOUNDS .1. GADOLINIUM, EUROPIUM, TERBIUM, SAMARIUM, AND CERIUM(III) [J].

MATIJEVIC, E ;

HSU, WP .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1987, 118 (02) :506-523

← 1 →