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

SCRIPTA MATERIALIA

卷:152

Article

Blackmur, Matthew S.¹  Dumbill, Simon¹  MacLaren, Ian²  Hernandez-Maldonado, David³  Styman, Paul D.¹  Gass, Mhairi⁴  Nicholls, Rebecca J.⁵  Hyde, Jonathan M.¹  Ramasse, Quentin M.³  Annand, Kirsty J.²  Smith, James S.⁶  Gotham, Natasha⁶ 

[1] Culham Sci Ctr, Natl Nucl Lab, Bldg D5, Abingdon OX14 3DB, Oxon, England

[2] Univ Glasgow, Sch Phys & Astron, Mat & Condensed Matter Phys, Glasgow G12 8QQ, Lanark, Scotland

[3] SuperSTEM Lab, SciTech Daresbury Campus,Keckwick Lane, Daresbury WA4 4AD, England

[4] Wood Plc, Clean Energy Europe, Walton House, Birchwood WA3 6GA, England

[5] Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England

[6] Rolls Royce Plc, POB 2000, Derby DE21 7XX, England

关键词: Electron energy loss spectroscopy (EELS);    Zirconium;    Hydrogen;    Implantation;    Trapping;   

DOI  :  10.1016/j.scriptamat.2018.04.007

来源: Elsevier

【 摘 要 】

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 Zr-H 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. Crown Copyright (C) 2018 Published by Elsevier Ltd on behalf of Acta Materialia Inc. This is an open access article under the Open Government License.

【 授权许可】

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