Effects of ion beam modification on absorption and transport of hydrogen in perovskite-type oxide ceramics

B. Tsuchiya, S. Nagata, K. Toh, T. Shikama

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Surface modification of proton conductive material (Yb-doped SrCeO 3 perovskite-type ceramics) has been carried out by irradiation with 10 keV D2+, He+ or Ar+ ions at room temperature. By exposure of Ar gas including H2O to the irradiated surface, the concentration of H in the projected range increased. The absorption of H is associated due to dissociation of H2O. The concentrations of the absorbed H by D+, He+ and Ar+ ion irradiations became about 2.0, 0.3 and 1.0 times, respectively, as much as the saturation concentration by H+ ion implantation. It was also found by isochronal annealing experiments that the thermal desorption rate of H retained in the irradiated surface was lower than that in the unirradiated one. These results show that the trapping and migration of hydrogen atoms in the proton conducting oxide ceramics are enhanced by ion beam modification.

Original languageEnglish
Pages (from-to)588-590
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume242
Issue number1-2
DOIs
Publication statusPublished - 2006 Jan 1

Keywords

  • Elastic recoil detection
  • Hydrogen absorption
  • Ion beam modification
  • Proton conductive material

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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