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

M. A. Tunes, V. M. Vishnyakov, O. Camara, G. Greaves, P. D. Edmondson, Yanwen Zhang, S. E. Donnelly

Research output: Contribution to journalArticleResearchpeer-review

7 Citations (Scopus)


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 × 1016 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
Issue numberJune
Early online date9 Apr 2019
Publication statusPublished - 1 Jun 2019


  • Accident tolerant fuels
  • Highly concentrated alloys
  • Ion beam sputter-deposition
  • Nuclear energy
  • Radiation damage

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