UO2-GD2O3 SOLID-SOLUTION FORMATION FROM WET AND DRY PROCESSES

被引：29

作者：

RIELLA, HG

DURAZZO, M

HIRATA, M

NOGUEIRA, RA

机构：

[1] Brazilian Nuclear Energy Commission, Nuclear and Energy Research Institute, Pinheiros, 05499 São Paulo

来源：

JOURNAL OF NUCLEAR MATERIALS | 1991年 / 178卷 / 2-3期

关键词：

D O I：

10.1016/0022-3115(91)90387-M

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Gadolinium oxide homogeneously mixed with uranium oxide nuclear fuel is used as burnable poison in modern LWR. Solid solutions of UO2 with Gd2O3 additions of between 5 and 10 wt% have been prepared according to the following routes: (a) mechanical mixing of both ceramic powders; (b) AUC and ADU coprecipitation. Microstructural analyses have been carried out by optical ceramography and electron microprobe for observation of heterogeneities. Sintered densities as well as O/U ratios of the ceramic pellets have also been measured.

引用

页码：204 / 211

页数：8

共 20 条

[1] AMATO I, 1971, 4TH P INT C PEAC US, P225
[2] ASSMANN H, 1987, 3TH P C CHAR QUAL CO, P115
[3] DORR W, Patent No. 156018
[4] DOSSANTOS LR, 1989, THESIS SAO PAULO U
[5] FERRARI KR, 1990, 3TH P NUCL EN C RIO
[6] FLIPOT AJ, 1970, NUCL ENG INT, V15, P345
[7] THE EFFECT OF GADOLINIUM CONTENT ON THE THERMAL-CONDUCTIVITY OF NEAR-STOICHIOMETRIC (U,GD)O2 SOLID-SOLUTIONS
FUKUSHIMA, S
OHMICHI, T
MAEDA, A
WATANABE, H
[J]. JOURNAL OF NUCLEAR MATERIALS, 1982, 105 (2-3) : 201 - 210
[8] HILL HW, 1966, GEAP5008
[9] STRUCTURAL CHEMISTRY OF SOLID-SOLUTIONS IN THE UO2-GD2O3 SYSTEM
HO, SM
RADFORD, KC
[J]. NUCLEAR TECHNOLOGY, 1986, 73 (03) : 350 - 360
[10] LITTLECHILD JE, 1973, P INT C NUCLEAR FUEL

← 1 2 →