Standard Swedish standard · SS-EN ISO 15646:2016

Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets (ISO 15646:2014)

Status: Valid

Buy this standard

Standard Swedish standard · SS-EN ISO 15646:2016

Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets (ISO 15646:2014)
Subscribe on standards - Read more Dölj
Price: 735 SEK
standard ikon pdf

PDF

Price: 735 SEK
standard ikon

Paper

Price: 1 176 SEK
standard ikon pdf + standard ikon

PDF + paper

Show more Show less
Preview this standard
Scope
This International Standard 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.On the assumption of the prediction, it is necessary to correlate the results of this test by some correlation rules, because the results of this test vastly depend on the re-sintering conditions (such as heat treatment temperature, treatment time, gas content, and partial oxygen pressure).

Subjects

Fissile materials (27.120.30)


Buy this standard

Standard Swedish standard · SS-EN ISO 15646:2016

Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets (ISO 15646:2014)
Subscribe on standards - Read more Dölj
Price: 735 SEK
standard ikon pdf

PDF

Price: 735 SEK
standard ikon

Paper

Price: 1 176 SEK
standard ikon pdf + standard ikon

PDF + paper

Show more Show less

Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-8020201

Edition: 1

Approved: 4/25/2016

No of pages: 20