Helium-Implanted ODS-Fe Alloy Investigated by Positron-Annihilation Spectroscopy
文献类型：期刊论文
| 作者 | Gao, PL; Wang BY(王宝义) ; Ju, X; Xin, Y; Cao, QS; Guo, ZM; Guo, LP; Wang, BY
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| 刊名 | IEEE TRANSACTIONS ON PLASMA SCIENCE
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| 出版日期 | 2016 |
| 卷号 | 44期号:9页码:1631-1635 |
| 关键词 | Defects helium irradiation oxide dispersion strengthened (ODS)-Fe positron-annihilation spectroscopy (PAS) |
| DOI | 10.1109/TPS.2016.2565514 |
| 英文摘要 | At room temperature, oxide dispersion strengthened (ODS)-Fe (Fe-2% Al2O3) and pure Fe were implanted with 140-keV helium ions by doses up to 1e+15, 5e+15, and 1e+16/cm(2). Vacancy-type defects induced by the implantation were investigated with positron-annihilation spectroscopy (PAS). Defect profiles of the S-parameter derived from PAS as a function of positron incident energy up to 20 KeV were analyzed. The S-parameter of the damaged layers in the ODS-Fe tend to be smaller than those in the pure Fe when the irradiation doses reach 1e+16/cm(2). This finding indicates that the ODS-Fe sample exhibits a higher irradiation resistance than the pure Fe. The reason might be that helium irradiation-induced point defects in ODS-Fe are trapped and annihilated at interfaces between the Fe matrix and the Al2O3 nanoparticles. Vacancy clusters and helium-vacancy complexes were identified as the main defects. Through the S-W curves, however, we observed only one type of defect in the irradiated ODS-Fe. While for the pure Fe case, things seem to be more complicated, where the surface and the bulk have different types of defects. |
| 语种 | 英语 |
| WOS记录号 | WOS:000384231500026 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/260321]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Gao, PL,Wang BY,Ju, X,et al. Helium-Implanted ODS-Fe Alloy Investigated by Positron-Annihilation Spectroscopy[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE,2016,44(9):1631-1635. |
| APA | Gao, PL.,王宝义.,Ju, X.,Xin, Y.,Cao, QS.,...&Wang, BY.(2016).Helium-Implanted ODS-Fe Alloy Investigated by Positron-Annihilation Spectroscopy.IEEE TRANSACTIONS ON PLASMA SCIENCE,44(9),1631-1635. |
| MLA | Gao, PL,et al."Helium-Implanted ODS-Fe Alloy Investigated by Positron-Annihilation Spectroscopy".IEEE TRANSACTIONS ON PLASMA SCIENCE 44.9(2016):1631-1635. |
入库方式： OAI收割
来源：高能物理研究所
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