A candidate accident tolerant fuel system based on a highly concentrated alloy thin film

Matheus Araujo Tunes, Vlad Vishnyakov, Osmane Camara, Graeme Greaves, Phil Edmondson, Y Zhang, Stephen Donnelly

Research output: Contribution to journalArticle


The feasibility of depositing a thin film of highly concentrated alloy on zircaloy-4 substrates at low temperatures was investigated. Electron microscopy characterisation at micro and nanoscales showed that the deposited thin film is near-equiatomic, single-phase and with all alloying elements uniformly distributed throughout the microstructure. Heavy-ion irradiations carried out in situ within a transmission electron microscope revealed the generation of both defect clusters and inert gas bubbles at around 1.5 × 10 16 ions·cm −2 (15.4 dpa). Post-irradiation characterisation showed that the thin film preserved its solid solution and that, under the studied conditions, no elemental segregation or phase transformations were observed, indicating a high radiation tolerance.

Original languageEnglish
Pages (from-to)356-362
Number of pages7
JournalMaterials Today Energy
Early online date9 Apr 2019
Publication statusPublished - Jun 2019


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