DIN EN ISO 15646:2016-07
Re-sintering test for UO<(Index)2>, (U,Gd)O<(Index)2> and (U,Pu)O<(Index)2> pellets (ISO 15646:2014); German version EN ISO 15646:2016
| Fecha edición: |
2016-07-01
En Vigor
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| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | ISO 15646:2014 describes a procedure for measuring the densification of UO<(Index)2>, (U,Gd)O<(Index)2>, and (U,Pu)O<(Index)2> 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)O<(Index)2> and (U,Pu)O<(Index)2>, oxide phase structure. A thermal re-sintering test can be used to characterize the dimensional behaviour of the pellets under high temperature. 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. |
| Keywords: | Density|Density measurement|Determination procedures|Fuels|Heat|Materials testing|Measurement|Measuring techniques|Nuclear fuels|Pellets|Plutonium|Sintering|Testing|Uranium|Uranium dioxide |
| ICS: | 27.120.30 - Materiales fisibles y tecnología del combustible nuclear |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN ISO 15646:2016 Idéntica ISO 15646:2014 |
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Reemplazo Normas |
Reemplaza a DIN EN ISO 15646:2015-10 |
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