Influence of helium ion irradiation on the morphology and microstructure of CN-G01 beryllium
文献类型：期刊论文
| 作者 | Luo,Xiaofang1; Gong,Baoping1; Wang,Long1; Cui,Minghuan2,3 ; Feng,Yongjin1
|
| 刊名 | Materials Research Express
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 7期号:12页码:8 |
| 关键词 | helium ion irradiation ion fluence CN-G01 beryllium morphology microstructure |
| DOI | 10.1088/2053-1591/abcdda |
| 通讯作者 | Luo,Xiaofang() |
| 英文摘要 | Abstract Beryllium is considered as a candidate of ITER first-wall (FW) armor and neutron multiplier in fusion reactors. To assess the irradiation resistance of CN-G01 beryllium, which has been accepted as an alternative ITER-grade beryllium in China, 180 keV helium ions with fluences of 1.0?×?1017 ions cm?2, 5.0?×?1017 ions cm?2 and 1.0?×?1018 ions cm?2 were implanted at room temperature. The theoretical simulation of energy loss, damage distribution and helium concentration were proceeded by SRIM. In this paper, we report the experimental exploration of ion fluence effect on surface morphology and microstructure of irradiated samples. Field Emission Scanning Electron Microscope (FESEM) analysis depicted the formation and growth of helium bubbles at different irradiation ion fluences. No obvious exfoliation or cavities was observed on the surface at all ion fluences, suggesting a reliable radiation resistance of CN-G01 beryllium. Atomic force microscopy (AFM) morphology showed that the maximum height of bubbles was 47.8 nm. Surface roughness values increased slightly due to the formation of defects and bubbles on the irradiated beryllium surface. Nevertheless, the structural analysis demonstrated by grazing incidence x-ray diffraction (GIXRD), indicated an obvious preferred orientation on (101) peak at various ion fluences. Annihilation of defects caused by a small rise of the localized temperature could explain the increasing intensity of diffraction peak (101). |
| WOS关键词 | FUSION ; ITER ; EVOLUTION |
| 资助项目 | Sichuan Science and Technology Program[2018JZ0014] ; National Key Research and Development Program of China[2017YFE0300602] ; National Natural Science Foundation of China[11905047] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | IOP Publishing |
| WOS记录号 | IOP:2053-1591-7-12-ABCDDA |
| 资助机构 | Sichuan Science and Technology Program ; National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/138599]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Luo,Xiaofang |
| 作者单位 | 1.Southwestern Institute of Physics, Chengdu, 610225, People’s Republic of China 2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, People’s Republic of China 3.School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Luo,Xiaofang,Gong,Baoping,Wang,Long,et al. Influence of helium ion irradiation on the morphology and microstructure of CN-G01 beryllium[J]. Materials Research Express,2020,7(12):8. |
| APA | Luo,Xiaofang,Gong,Baoping,Wang,Long,Cui,Minghuan,&Feng,Yongjin.(2020).Influence of helium ion irradiation on the morphology and microstructure of CN-G01 beryllium.Materials Research Express,7(12),8. |
| MLA | Luo,Xiaofang,et al."Influence of helium ion irradiation on the morphology and microstructure of CN-G01 beryllium".Materials Research Express 7.12(2020):8. |
入库方式： OAI收割
来源：近代物理研究所
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