The association of hydrogen with nanometre bubbles of helium implanted into zirconium. (15th July 2018)

• Record Type: Journal Article
• Authors: Blackmur, Matthew S.; Dumbill, Simon; MacLaren, Ian; Hernandez-Maldonado, David; Styman, Paul D.; Gass, Mhairi; Nicholls, Rebecca J.; Hyde, Jonathan M.; Ramasse, Quentin M.; Annand, Kirsty J.; Smith, James S.; Gotham, Natasha
• Is Part Of: Scripta materialia. Number 152(2018)
• Page Start: 102
• Page End: 106
• Publication Date: 2018-07-15
• Subjects: Electron energy loss spectroscopy (EELS) -- Zirconium -- Hydrogen -- Implantation -- Trapping; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.04.007
• Languages: English
• ISSNs: 1359-6462

Abstract

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. Graphical abstract: Unlabelled Image