ERD measurement of D-H replacement in D-implanted oxide ceramics exposed to H2O vapor at room temperature

Kenji Morita; Bun Tsuchiya; Shinji Nagata; Koji Katahira

doi:10.1016/j.nimb.2006.04.059

ERD measurement of D-H replacement in D-implanted oxide ceramics exposed to H₂O vapor at room temperature

Kenji Morita, Bun Tsuchiya, Shinji Nagata, Koji Katahira

Materials Design Division

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The speed of D-H replacement in D-implanted BaCe_1-XY_XO_3-δ and SrCe_1-XYb_XO_3-δ, exposed to H₂O vapor at room temperature has been studied as a function of X by use of the ERD technique with MeV He⁺ ion beam. The decay curve of D and growth curve of H in the specimens have been measured as a function of exposure time, and the decay constants of D, namely the D-H replacement speeds, have been obtained from the experimental curves. It is found for both specimens that the decay constants of D, proportional to the absorption coefficient and the molecular formation coefficient of HD, increases and then after a maximum at X = 0.05-0.10 decreases as X increases and the absolute experimental values for BaCe_1-XY_XO_3-δ are larger by an order of magnitude than those of SrCe_1-XYb_XO_3-δ.

Original language	English
Pages (from-to)	322-325
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	249
Issue number	1-2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.nimb.2006.04.059
Publication status	Published - 2006 Aug 1

Keywords

ERD
Hydrogen
Oxide ceramics

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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ERD measurement of D-H replacement in D-implanted oxide ceramics exposed to H₂O vapor at room temperature. / Morita, Kenji; Tsuchiya, Bun; Nagata, Shinji; Katahira, Koji.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 249, No. 1-2 SPEC. ISS., 01.08.2006, p. 322-325.

Research output: Contribution to journal › Article › peer-review

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abstract = "The speed of D-H replacement in D-implanted BaCe1-XYXO3-δ and SrCe1-XYbXO3-δ, exposed to H2O vapor at room temperature has been studied as a function of X by use of the ERD technique with MeV He+ ion beam. The decay curve of D and growth curve of H in the specimens have been measured as a function of exposure time, and the decay constants of D, namely the D-H replacement speeds, have been obtained from the experimental curves. It is found for both specimens that the decay constants of D, proportional to the absorption coefficient and the molecular formation coefficient of HD, increases and then after a maximum at X = 0.05-0.10 decreases as X increases and the absolute experimental values for BaCe1-XYXO3-δ are larger by an order of magnitude than those of SrCe1-XYbXO3-δ.",

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AU - Nagata, Shinji

AU - Katahira, Koji

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N2 - The speed of D-H replacement in D-implanted BaCe1-XYXO3-δ and SrCe1-XYbXO3-δ, exposed to H2O vapor at room temperature has been studied as a function of X by use of the ERD technique with MeV He+ ion beam. The decay curve of D and growth curve of H in the specimens have been measured as a function of exposure time, and the decay constants of D, namely the D-H replacement speeds, have been obtained from the experimental curves. It is found for both specimens that the decay constants of D, proportional to the absorption coefficient and the molecular formation coefficient of HD, increases and then after a maximum at X = 0.05-0.10 decreases as X increases and the absolute experimental values for BaCe1-XYXO3-δ are larger by an order of magnitude than those of SrCe1-XYbXO3-δ.

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