Improvement of UO2 powder properties prepared from recycled aged fuel pellets

被引：2

作者：

Mernache, Fatah ^{[1
,2
]}

Boutarek, Naima ^{[2
]}

Chabour, Abdelali ^{[2
]}

Melhani, Yasmine ^{[1
]}

Hadji, Said ^{[1
]}

机构：

[1] Nucl Res Ctr Draria, BP 43 Sebala, Algiers, Algeria

[2] Univ Sci & Technol Houari Boumediene, Dept Mat Sci, Labs Mat Technol, BP32 El Alia, Algiers 16111, Algeria

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 312卷 / 01期

关键词：

Aged fuel pellets; UO2; recycling; Oxidation-reduction; URANIUM-DIOXIDE; OXIDATION BEHAVIOR; AIR;

D O I：

10.1007/s10967-017-5200-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The effect of the oxidation temperature of sintered UO2 pellets on the powder properties of U3O8 was studied in the temperature range 250-900 A degrees C in air. The U3O8 was obtained at 450 A degrees C after 180 min and its particle size and surface area are respectively, 35 A mu m and 0.7 m(2)/g. The reduction of the U3O8 powder resulted in UO2 after 30 min with a surface area of 0.8 m(2)/g. This value was improved more than 3.5 times by applying five alternating oxidation-reduction cycles.

引用

页码：87 / 93

页数：7

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