Isotopic exchange between gaseous hydrogen and scandium dideuteride thin films

M. A. Mangan, J. F. Browning, J. Majoweski

Research output: Contribution to journalConference articlepeer-review

Abstract

As part of a study to understand the long-term storage effects on scandium hydride thin films, an experiment has been conducted in which scandium dideuteride thin films were exposed to a hydrogen environment for various periods of time at ambient temperature. The resulting films were analysed using neutron reflectivity using the Surface Profile Analysis Reflectometer (SPEAR) at the Los Alamos Neutron Science Center. Using neutron reflectivity and taking advantage of the large difference in the neutron scattering lengths of hydrogen and deuterium, the resulting changes in the film composition due to isotopic exchange and diffusion were observed as a function of the film depth.

Original languageEnglish
Pages (from-to)3391-3396
Number of pages6
JournalMaterials Science Forum
Volume426-432
Issue number4
DOIs
StatePublished - 2003
Externally publishedYes
EventThermec 2003 Processing and Manufacturing of Advanced Materials - Madrid, Spain
Duration: Jul 7 2003Jul 11 2003

Keywords

  • Neutron reflectivity
  • Neutron scattering
  • Scandium hydride
  • Thin films

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