BS EN ISO 15646:2016 - Re-sintering test for UO<sub>2</sub>, (U,Gd)O<sub>2</sub> and (U,Pu)O<sub>2</sub> pellets

BS EN ISO 15646:2016

Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets

Status : Current   Published : June 2014



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.

Standard NumberBS EN ISO 15646:2016
TitleRe-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets
Publication Date30 June 2014
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)ISO 3369, ISO 9278
International RelationshipsEN ISO 15646:2016,ISO 15646:2014
Amended ByCorrigendum, May 2016
DescriptorsNuclear power, Error correction, Dosimeters, Nuclear radiation, Photons, Beta-particles, Radiation measurement, Radionuclides, Exposure-rate meters, Calibration, Radioactive sources, Control samples
Title in FrenchTest de refrittage pour pastilles UO2, (U,Gd)O2 et (U,Pu)O2
Title in GermanNachsintertest für UO2-, (U,Gd)O2- und (U,Pu)O2-Pellets
ISBN978 0 580 90935 1
File Size825 KB

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