Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7962967 | Journal of Nuclear Materials | 2018 | 18 Pages |
Abstract
Fuel Clad Chemical Interaction (FCCI) is one of the life limiting issues in the MOX fuel pins of fast breeder reactors. Clad wastage due to FCCI coupled with stress arising from fission gas pressure and Fuel Clad Mechanical Interaction (FCMI) due to fuel swelling can lead to fuel pin failure. Non-destructive evaluation (NDE) techniques such as Gamma Scanning, Eddy current testing and Neutron Radiography have been successfully used on MOX fuel pins of a test sub-assembly irradiated in Fast Breeder Test Reactor (FBTR) to a burn-up of 112â¯GWâ¯d/t to detect signatures of FCCI. The results obtained by the various NDE techniques have been correlated and verified through metallographic examination on fuel pin cross-sections. The measured clad wastage of 85â¯Î¼m agrees well with a model developed for MOX fuel with high Pu content. The results of examinations have enabled validation of the model and given confidence to the designer that PFBR MOX fuel can safely attain the target burn-up of 100â¯GWâ¯d/t.
Related Topics
Physical Sciences and Engineering
Energy
Nuclear Energy and Engineering
Authors
V.V. Jayaraj, S. Thirunavukkarasu, V. Anandaraj, B.K. Ojha, Ran Vijay Kumar, S. Vinodkumar, M. Padalakshmi, C. Padmaprabu, C.N. Venkiteswaran, V. Karthik, R. Divakar, B. Purna Chandra Rao, Jojo Joseph,