Low temperature synthesis and sintering behaviour of Gd-doped ceria nanosized powders: comparison between two synthesis procedures

被引：0

作者：

Gil, V. ^{[1
]}

Tartaj, J. ^{[1
]}

Moure, C. ^{[1
]}

机构：

[1] CSIC, Inst Ceram & Vidrio, Electroceram Dept, E-28049 Madrid, Spain

来源：

BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO | 2009年 / 48卷 / 02期

关键词：

Ceria; powder processing; sintering; solid electrolyte; CERIUM(IV) OXIDE POWDERS; ELECTRICAL-CONDUCTIVITY; ELECTROLYTES; MICROSTRUCTURE; CERAMICS; SM;

D O I：

暂无

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：

Two different routes of synthesis of Ce(0.9)Gd(0.1)O(1.95) (CGO) nanopowders are presented; the ethylene glycol-metal nitrate polymerized complex solution method and the precipitation technique using ammonia as the precipitant agent. The powders characteristics were examined by X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area and simultaneous thermogravimetric and differential thermal analysis (TG/DTA). Scanning electron microscopy (SEM) observations were used to determine the agglomeration degree of the powders, and the uniformity of the green compacts. The Hg-porosimetry results were used to investigate the pore size. The densification process was studied by constant heating rate dilatometry and isothermal sintering at different temperatures. Microstructural development of each sample at different sintering temperatures and times was followed by SEM.

引用

页码：69 / 76

页数：8

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