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 language | English |
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Pages (from-to) | 588-590 |
Number of pages | 3 |
Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
Volume | 242 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2006 Jan |
Externally published | Yes |
Keywords
- Elastic recoil detection
- Hydrogen absorption
- Ion beam modification
- Proton conductive material
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation