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

Abstract

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
Volume12
Early online date9 Apr 2019
DOIs
Publication statusPublished - Jun 2019

Fingerprint

Fuel systems
Accidents
Thin films
Noble Gases
Heavy Ions
Alloying elements
Ion bombardment
Inert gases
Heavy ions
Electron microscopy
Solid solutions
Electron microscopes
Phase transitions
Irradiation
Radiation
Defects
Microstructure
Substrates
Temperature

Cite this

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A candidate accident tolerant fuel system based on a highly concentrated alloy thin film. / Tunes, Matheus Araujo; Vishnyakov, Vlad; Camara, Osmane; Greaves, Graeme; Edmondson, Phil; Zhang, Y; Donnelly, Stephen.

In: Materials Today Energy, Vol. 12, 06.2019, p. 356-362.

Research output: Contribution to journalArticle

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AU - Zhang, Y

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