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Structural and mechanical properties of irradiated multilayer nanocomposites

Structural and mechanical properties of irradiated multilayer nanocomposites
Structural and mechanical properties of irradiated multilayer nanocomposites
Radiation damage processes in ion-irradiated metals have been thoroughly studied in the last decade revealing complexity and multiscale nature of material damage. Conversely, very little attention has been paid regarding gamma rays damage, which, in reactor pressure vessels, was found to be comparable to that produced by fast neutrons. Nanoscale structural control of nuclear materials through design of interfaces is a promising way of limiting radiation damage.

Here we report two case studies regarding: (i) the role of interfaces and of He-ion radiation doses on the structural and mechanical properties of a sputter-deposited Cu/W multilayer, and (ii) the role of interface density distribution on the structural and mechanical properties of gamma-irradiated Zr/Nb multilayers. Transmission electron microscopy and X-ray diffraction were employed to investigate radiation damage, while mechanical properties were explored by nanoindentation. We propose correlations between radiation experiments and materials properties for each case.
Callisti, M.
093b5320-2398-4d72-8b09-278d22a08937
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Callisti, M.
093b5320-2398-4d72-8b09-278d22a08937
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2

Callisti, M. and Polcar, T. (2015) Structural and mechanical properties of irradiated multilayer nanocomposites. Irradiation Effects in Nuclear Materials, United Kingdom. 23 - 25 Sep 2015.

Record type: Conference or Workshop Item (Poster)

Abstract

Radiation damage processes in ion-irradiated metals have been thoroughly studied in the last decade revealing complexity and multiscale nature of material damage. Conversely, very little attention has been paid regarding gamma rays damage, which, in reactor pressure vessels, was found to be comparable to that produced by fast neutrons. Nanoscale structural control of nuclear materials through design of interfaces is a promising way of limiting radiation damage.

Here we report two case studies regarding: (i) the role of interfaces and of He-ion radiation doses on the structural and mechanical properties of a sputter-deposited Cu/W multilayer, and (ii) the role of interface density distribution on the structural and mechanical properties of gamma-irradiated Zr/Nb multilayers. Transmission electron microscopy and X-ray diffraction were employed to investigate radiation damage, while mechanical properties were explored by nanoindentation. We propose correlations between radiation experiments and materials properties for each case.

Full text not available from this repository.

More information

e-pub ahead of print date: 23 September 2015
Venue - Dates: Irradiation Effects in Nuclear Materials, United Kingdom, 2015-09-23 - 2015-09-25
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 382039
URI: https://eprints.soton.ac.uk/id/eprint/382039
PURE UUID: e3612c2c-f247-4fb2-bdb6-9d01b0b20b76
ORCID for T. Polcar: ORCID iD orcid.org/0000-0002-0863-6287

Catalogue record

Date deposited: 15 Oct 2015 13:28
Last modified: 06 Jun 2018 12:30

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