Direct Comparison of Tungsten Nanoparticles and Foils under Helium Irradiation at High Temperatures Studied via In-Situ Transmission Electron Microscopy

Research output: Contribution to journalMeeting Abstract

Abstract

The nanoengineering of materials for enhanced radiation damage tolerance by increasing the density of defect sinks and recombination centres has been investigated in nanograined, nanolayered, nanoporous, and nanodispersion-strengthened materials. For example, in a nanoporous material an interconnected network of ligaments forms a structure in which the surface-area-to-volume ratio, RSV, is high and the distance to the nearest surface is always short. These surfaces act as insaturable sinks at which defects can annihilate and mobile gas atoms escape. This is particularly important in nuclear materials where neutron irradiation can induce the creation of vacancies and interstitials via atomic displacements as well as the introduction of insoluble gases such as helium from (n,α) reactions.
LanguageEnglish
Pages1576-1577
Number of pages2
JournalMicroscopy and Microanalysis
Volume25
Issue numberS2
Early online date5 Aug 2019
DOIs
Publication statusPublished - Aug 2019
EventMicroscopy & Microanalysis 2019 Meeting - Portland, United States
Duration: 4 Aug 20198 Aug 2019
https://www.microscopy.org/mandm/2019/

Fingerprint

Metal foil
Helium
Tungsten
foils
tungsten
helium
Irradiation
Nanoparticles
Transmission electron microscopy
sinks
nanoparticles
transmission electron microscopy
irradiation
ligaments
defects
neutron irradiation
radiation damage
gases
Damage tolerance
Temperature

Cite this

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title = "Direct Comparison of Tungsten Nanoparticles and Foils under Helium Irradiation at High Temperatures Studied via In-Situ Transmission Electron Microscopy",
abstract = "The nanoengineering of materials for enhanced radiation damage tolerance by increasing the density of defect sinks and recombination centres has been investigated in nanograined, nanolayered, nanoporous, and nanodispersion-strengthened materials. For example, in a nanoporous material an interconnected network of ligaments forms a structure in which the surface-area-to-volume ratio, RSV, is high and the distance to the nearest surface is always short. These surfaces act as insaturable sinks at which defects can annihilate and mobile gas atoms escape. This is particularly important in nuclear materials where neutron irradiation can induce the creation of vacancies and interstitials via atomic displacements as well as the introduction of insoluble gases such as helium from (n,α) reactions.",
keywords = "Tungsten nanoparticles, in-situ TEM, Nanoporous, radiation damage, Radiation tolerance",
author = "Emily Aradi and Jacob Lewis-Fell and Harrison, {R. W.} and Graeme Greaves and Mir, {Anamul Haq} and Stephen Donnelly and Jonathan Hinks",
year = "2019",
month = "8",
doi = "10.1017/S1431927619008614",
language = "English",
volume = "25",
pages = "1576--1577",
journal = "Microscopy and Microanalysis",
issn = "1431-9276",
publisher = "Cambridge University Press",
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TY - JOUR

T1 - Direct Comparison of Tungsten Nanoparticles and Foils under Helium Irradiation at High Temperatures Studied via In-Situ Transmission Electron Microscopy

AU - Aradi, Emily

AU - Lewis-Fell, Jacob

AU - Harrison, R. W.

AU - Greaves, Graeme

AU - Mir, Anamul Haq

AU - Donnelly, Stephen

AU - Hinks, Jonathan

PY - 2019/8

Y1 - 2019/8

N2 - The nanoengineering of materials for enhanced radiation damage tolerance by increasing the density of defect sinks and recombination centres has been investigated in nanograined, nanolayered, nanoporous, and nanodispersion-strengthened materials. For example, in a nanoporous material an interconnected network of ligaments forms a structure in which the surface-area-to-volume ratio, RSV, is high and the distance to the nearest surface is always short. These surfaces act as insaturable sinks at which defects can annihilate and mobile gas atoms escape. This is particularly important in nuclear materials where neutron irradiation can induce the creation of vacancies and interstitials via atomic displacements as well as the introduction of insoluble gases such as helium from (n,α) reactions.

AB - The nanoengineering of materials for enhanced radiation damage tolerance by increasing the density of defect sinks and recombination centres has been investigated in nanograined, nanolayered, nanoporous, and nanodispersion-strengthened materials. For example, in a nanoporous material an interconnected network of ligaments forms a structure in which the surface-area-to-volume ratio, RSV, is high and the distance to the nearest surface is always short. These surfaces act as insaturable sinks at which defects can annihilate and mobile gas atoms escape. This is particularly important in nuclear materials where neutron irradiation can induce the creation of vacancies and interstitials via atomic displacements as well as the introduction of insoluble gases such as helium from (n,α) reactions.

KW - Tungsten nanoparticles

KW - in-situ TEM

KW - Nanoporous

KW - radiation damage

KW - Radiation tolerance

U2 - 10.1017/S1431927619008614

DO - 10.1017/S1431927619008614

M3 - Meeting Abstract

VL - 25

SP - 1576

EP - 1577

JO - Microscopy and Microanalysis

T2 - Microscopy and Microanalysis

JF - Microscopy and Microanalysis

SN - 1431-9276

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