Borrador del Comité
ISO/CD 15646
Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets
Reference number
ISO/CD 15646
Edition 2
© ISO 2026
Borrador del Comité
En desarrollo
El comité está revisando un borrador.
Reemplazará ISO 15646:2014

Resumen

ISO 15646:2014 describes a procedure for measuring the densification of UO2, (U,Gd)O2, and (U,Pu)O2 pellets, achieved by heat treatment under defined conditions.

The densification of fuel in power operation is an important design feature. Essentially, it is dependent on structural parameters such as pore size, spatial pore distribution, grain size, and in the case of (U,Gd)O2 and (U,Pu)O2, oxide phase structure. A thermal re-sintering test can be used to characterize the dimensional behaviour of the pellets under high temperature. The results of this test are used by the fuel designer to predict dimensional behaviour in the reactor, because thermal densification in the reactor is also dependent on these structural parameters, albeit in a differing manner in terms of quantity.

Informaciones generales

  • Estado
     : En desarrollo
    Etapa
    : Borrador de comité (CD) registrado [30.00]
  • Edición
     : 2
  • Comité Técnico :
    ISO/TC 85/SC 5
  • RSS actualizaciones

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Esta norma contribuye al siguiente Objetivo de Desarrollo Sostenible

7
Affordable and Clean Energy

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