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.
Original languageEnglish
Pages (from-to)1576-1577
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/

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