Search:
Computing and Library Services - delivering an inspiring information environment

Transmission Electron Microscopy Study of Graphite underin situIon Irradiation

Hinks, J. A., Jones, A N, Theodosiou, A, Van den Berg, Jakob and Donnelly, S. E. (2012) Transmission Electron Microscopy Study of Graphite underin situIon Irradiation. Journal of Physics: Conference Series, 371. 012046. ISSN 1742-6596

[img]
Preview
PDF - Accepted Version
Download (473kB) | Preview

    Abstract

    Graphite is employed as a moderator and structural component in 18 of the UK's fleet of Magnox and Advanced Gas-cooled Reactors (AGRs). During the operational lifetime of a reactor, graphite undergoes complex physical and mechanical property changes including dimensional modification, owing to the effects of temperature, oxidation and irradiation-induced atomic displacements. In order to safely extend the lifetime of the current fleet of AGRs, and also to develop materials for GenIV concepts such as the Very-High-Temperature Reactor (VHTR), it is important to gain a better understanding of the fundamental atomic processes which underpin the behaviour of graphite under current and future operational conditions.

    This study has focused on the effects of temperature and displacing radiation on the evolution of Mrozowski cracks in highly-orientated pyrolytic graphite (HOPG) using the new Microscope and Ion Accelerator for Materials Investigations (MIAMI) facility. This instrument allows transmission electron microscopy to be performed in situ whilst simultaneously ion irradiating to radiation damage levels typically reached in a reactor. By using this technique, it is possible to explore the development of radiation damage under a range of different conditions continuously from start-to-finish rather than just observing the end-states accessible in ex situ studies.

    Item Type: Article
    Subjects: Q Science > Q Science (General)
    Q Science > QC Physics
    Schools: School of Computing and Engineering
    School of Computing and Engineering > Pedagogical Research Group
    School of Computing and Engineering > Electron Microscopy and Materials Analysis
    Related URLs:
    Depositing User: Jonathan Hinks
    Date Deposited: 29 Nov 2012 11:06
    Last Modified: 02 Sep 2013 11:25
    URI: http://eprints.hud.ac.uk/id/eprint/16018

    Document Downloads

    Downloader Countries

    More statistics for this item...

    Item control for Repository Staff only:

    View Item

    University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©