Powder synthesis and sintering of high density thoria-yttria ceramics

被引：10

作者：

Cosentino, IC ^{[1
]}

Muccillo, R ^{[1
]}

机构：

[1] IPEN, CCTM, Ctr Multidisciplinar Desenvolvimento Mat Ceram, BR-05422970 Sao Paulo, Brazil

来源：

JOURNAL OF NUCLEAR MATERIALS | 2002年 / 304卷 / 2-3期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/S0022-3115(02)00884-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ThO2-n mol% Y2O3 ceramic powders with submicron average particle size were prepared by the citrate technique using thorium oxalate, yttrium nitrate, citric acid and ethylene glycol. For n = 3, 6, 9 and 12, reactive thoria-yttria solid solution powders with surface areas of 17.3, 11.1, 9.4 and 8.7 m(2)/g, respectively, were obtained. X-ray diffraction, scanning electron microscopy and transmission electron microscopy were carried out for characterization of the powders. Pressing and sintering at 1550 degreesC/2 h produced pellets with densities higher than 90% of the theoretical density. The pellets were also characterized by XRD and SEM. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：129 / 133

页数：5

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