The association of hydrogen with nanometre bubbles of helium implanted into zirconium

Blackmur, M. S. et al. (2018) The association of hydrogen with nanometre bubbles of helium implanted into zirconium. Scripta Materialia, 152, pp. 102-106. (doi:10.1016/j.scriptamat.2018.04.007)

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Abstract

Electron energy-loss spectroscopy (EELS) is used to investigate the association of hydrogen with helium bubbles in zirconium. Conventional EELS data yield a signal at 13.5 eV (similar to the hydrogen K-edge, 13 eV), which is spatially distributed around the peripheries of bubbles and may correlate with the concentration of hydrogen/deuterium in the material. Ultra-high energy resolution EELS yields a signal at 148.6 meV (comparable to a range of ZrH bonds, 130–156 meV) from a region containing bubbles and no visible hydrides. These signals are interpreted in the context of either bubble surface chemisorption or bubble stress field trapping mechanisms.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Annand, Ms Kirsty and MacLaren, Dr Ian
Authors: Blackmur, M. S., Dumbill, S., MacLaren, I., Hernandez-Maldonado, D., Styman, P. D., Gass, M., Nicholls, R. J., Hyde, J. M., Ramasse, Q. M., Annand, K. J., Smith, J. S., and Gotham, N.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Scripta Materialia
Publisher:Elsevier
ISSN:1359-6462
ISSN (Online):1872-8456
Published Online:24 April 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Scripta Materialia 152:102-106
Publisher Policy:Reproduced under the Open Government License (OGL)

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
642131Doctoral Training Grant 2013 - 2017Mary Beth KneafseyEngineering and Physical Sciences Research Council (EPSRC)EP/L50497X/1RSI - RESEARCH STRATEGY & INNOVATION