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Publications / SAND Report

Fundamentals of Pellet-Clad Debonding

Dingreville, Remi P.; Hattar, Khalid M.; Boyle, Timothy J.; Monterrosa, Anthony M.; Barr, Christopher M.; Weck, Philippe F.; Juan, Pierre-Alexandre J.

This project focused on providing a fundamental mechanistic understanding of the complex degra- dation mechanisms associated with Pellet/Clad Debonding (PCD) through the use of a unique suite of novel synthesis of surrogate spent nuclear fuel, in-situ nanoscale experiments on surrogate interfaces, multi-modeling, and characterization of decommissioned commercial spent fuel. The understanding of a broad class of metal/ceramic interfaces degradation studied within this project provided the technical basis related to the safety of high burn-up fuel, a problem of interest to the DOE.