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

doi:10.1016/j.mtener.2019.03.004

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

Lehrstuhl für Nichteisenmetallurgie (520)

University of Huddersfield
Oak Ridge National Laboratory

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Begutachtung

7 Zitate (Scopus)

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 × 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.

Originalsprache	Englisch
Seiten (von - bis)	356-362
Seitenumfang	7
Fachzeitschrift	Materials Today Energy
Jahrgang	12.2019
Ausgabenummer	June
Frühes Online-Datum	9 Apr. 2019
DOIs	https://doi.org/10.1016/j.mtener.2019.03.004
Publikationsstatus	Veröffentlicht - 1 Juni 2019

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10.1016/j.mtener.2019.03.004

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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 × 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.",

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AU - Tunes, M. A.

AU - Vishnyakov, V. M.

AU - Camara, O.

AU - Greaves, G.

AU - Edmondson, P. D.

AU - Zhang, Yanwen

AU - Donnelly, S. E.

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AB - 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.

KW - Accident tolerant fuels

KW - Highly concentrated alloys

KW - Ion beam sputter-deposition

KW - Nuclear energy

KW - Radiation damage

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