The Recovery of Gas-Vacancy-Complexes in Fe Irradiated with High Energy H or He Ions
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- Ishizaki Toshitaka
- Research Reactor Institute, Kyoto University
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- Xu Qiu
- Research Reactor Institute, Kyoto University
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- Yoshiie Toshimasa
- Research Reactor Institute, Kyoto University
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- Nagata Shinji
- Institute for Materials Research, Tohoku University
書誌事項
- タイトル別名
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- Recovery of Gas Vacancy Complexes in Fe Irradiated with High Energy H or He Ions
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Isochronal annealing experiments for Fe irradiated with H or He ions were carried out to study interactions between gas atoms and vacancy clusters. The accelerating energy of H and He ions was 1.0 MeV and 3.3 MeV, respectively. The total dose was 1.0 × 1021 H ions/m2 (0.2 dpa) and 9.6 × 1019 He ions/m2 (0.3 dpa), and the irradiation temperature was 300°C. Positron annihilation lifetime and coincidence Doppler broadening (CDB) measurements were carried out after irradiation and annealing for 1 hour up to the complete recovery temperature. Microvoids were detected after H or He ion irradiation. The characteristic difference was mainly shown in the recovery of vacancy type defects. The recovery of vacancy type defects introduced by H ion irradiation finished completely at 450°C, while that by He ion irradiation finished at 1000°C. It suggests that H-vacancy complexes were less stable than He-vacancy complexes. In addition, vacancy clusters formed by He ion irradiation grew after annealing at 600°C. This was caused by the emission of He atoms from small He-vacancy clusters and the coalescence between free vacancies and vacancy clusters, and by the migration and coalescence of He bubbles.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 45 (1), 9-12, 2004
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679227910912
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- NII論文ID
- 10011981446
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- NII書誌ID
- AA1151294X
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- COI
- 1:CAS:528:DC%2BD2cXhtFKru7s%3D
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 6824810
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可