Articles liés à Sintering Behavior of the UO2-Gd2O3 Nuclear Fuel

Sintering Behavior of the UO2-Gd2O3 Nuclear Fuel - Couverture souple

Durazzo, Michelangelo; Riella, Humberto Gracher

 
9783845407845: Sintering Behavior of the UO2-Gd2O3 Nuclear Fuel
Couverture souple
ISBN 10 : 3845407840 ISBN 13 : 9783845407845
Editeur : LAP LAMBERT Academic Publishing, 2014

Synopsis

The UO2-Gd2O3 nuclear fuel finds application in modern PWR reactors for extending the burning cycle, and thus extending the interval for refueling the reactor core. Unfortunately, the UO2-Gd2O3 fuel shows an abnormal sintering behavior when compared to the sintering behavior of the standard UO2 fuel widely used in PWR and BWR reactors around the world. Above 1200 ºC, the sintering rate decreases and the densification is shifted to higher temperatures. As a consequence, the final sintered density is significantly lower than the traditional density achieved in sintering pure UO2 fuel. This book presents a brief review on the sintering behavior of the UO2-Gd2O3 nuclear fuel and the difficulties reported regarding the manufacturing of this mixed fuel, which are related to the insufficient densification during the sintering step. The most recent investigations are presented to explain this abnormal sintering behavior. Based on the knowledge of the sintering mechanism for this mixed fuel, alternatives are proposed to overcome the sintering difficulty.

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Présentation de l'éditeur

The UO2-Gd2O3 nuclear fuel finds application in modern PWR reactors for extending the burning cycle, and thus extending the interval for refueling the reactor core. Unfortunately, the UO2-Gd2O3 fuel shows an abnormal sintering behavior when compared to the sintering behavior of the standard UO2 fuel widely used in PWR and BWR reactors around the world. Above 1200 ºC, the sintering rate decreases and the densification is shifted to higher temperatures. As a consequence, the final sintered density is significantly lower than the traditional density achieved in sintering pure UO2 fuel. This book presents a brief review on the sintering behavior of the UO2-Gd2O3 nuclear fuel and the difficulties reported regarding the manufacturing of this mixed fuel, which are related to the insufficient densification during the sintering step. The most recent investigations are presented to explain this abnormal sintering behavior. Based on the knowledge of the sintering mechanism for this mixed fuel, alternatives are proposed to overcome the sintering difficulty.

Biographie de l'auteur

Michelangelo Durazzo, PhD: Studied Nuclear Technology at São Paulo University. R&D Manager at Nuclear Fuel Center of Nuclear and Energy Research Institute-IPEN-CNEN/SP. Professor at São Paulo University. Specialist in nuclear fuel technology. Engaged in techniques for nuclear fuel manufacture and techniques for materials characterization.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2014
Langue
anglais
ISBN 10 
3845407840
ISBN 13 
9783845407845
Reliure
Broché
Nombre de pages
188
Coordonnées du fabricant
non disponible
Personne responsable
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