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http://dx.doi.org/10.4313/JKEM.2002.15.1.046

Fine Powder Synthesis and It`s Sintering Characteristics of Gd2O3Doped CeO2 by the Oxalate Coprecipitation Method  

최광훈 (성대학교 재료공학과)
박성용 (성대학교 재료공학과)
이주진 (성대학교 재료공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.15, no.1, 2002 , pp. 46-55 More about this Journal
Abstract
10mo1% Gd$_2$O$_3$ doped CeO$_2$ fine powders were synthesized by the oxalate coprecipitation method. The characteristics and sintering behavior of fine powders were investigated. The oxalate precipitates had the specific surface area of 150$m^2$/g, and appeared to be fine and spherical primary particles with a size of approximately 5.5nm. The decomposition of the precipitates occurred from a temperature around 30$0^{\circ}C$ and it was completed below 40$0^{\circ}C$, resulted in the formation of the oxide. The calcination temperature of the fine powders was suitable at 77$0^{\circ}C$. By introducing fine powders washed with alcohol and ball-milling process after calcination, the sintered body was possible to attain the value of 97% of the theoretical density at low temperature of 130$0^{\circ}C$
Keywords
$Gd_{2}O_{3}Doped CrO_2$; Coprecipitation; Fine powders; Sintering;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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