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|Title:||The high burnup structure in nuclear fuel|
|Authors:||RONDINELLA Vincenzo; WISS Thierry|
|Citation:||MATERIALS TODAY vol. 13 no. 12 p. 24 - 32|
|Publisher:||ELSEVIER SCI LTD|
|Type:||Articles in periodicals and books|
|Abstract:||During its operating life in the core of a nuclear reactor, nuclear fuel is subjected to significant restructuring processes determined by neutron irradiation directly through nuclear reactions and indirectly through the thermo-mechanical conditions established as a consequence of such reactions. In today's light water reactors, starting after ~4 years of operation the cylindrical UO2 fuel pellet undergoes a transformation affecting its outermost radial region. The discovery of a newly forming structure required answering important questions concerning the safety of extended fuel operation, and still today poses a fascinating scientific challenge to fully understand the microstructural mechanisms responsible for its formation.|
|JRC Directorate:||Nuclear Safety and Security|
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