Studies of erosion-deposition of plasma-facing materials due to plasma-wall interactions in EAST tokamak
文献类型：期刊论文
| 作者 | Imran, Muhammad2; Hu, Zhenhua2 ; Zheng, Peichao3; Sattar, Harse1; Khan, Muhammad Salman2; Iqbal, Muzammil4; Luo, Guang-Nan2; Ding, Fang2
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| 刊名 | JOURNAL OF NUCLEAR MATERIALS
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 598 |
| 关键词 | Plasma -wall interaction Erosion Deposition Laser -induced breakdown spectroscopy Plasma -facing materials Test samples |
| ISSN号 | 0022-3115 |
| DOI | 10.1016/j.jnucmat.2024.155195 |
| 通讯作者 | Hu, Zhenhua(huzh@ipp.ac.cn) |
| 英文摘要 | Material erosion, migration, mixing, dust formation, and co-deposition were investigated on plasma-facing materials in the experimental advanced superconducting tokamak (EAST). The test samples (TSs) of molybdenum (Mo), tungsten (W), and carbon (C) were irradiated during EAST operations. All exposed TS surfaces are modified by erosion and deposition processes resulting in the formation of thin layers containing a mixture of PFCs (Mo, W, Cu, Cr, Fe) and light elements (Li, C, Ca, N, O). The majority of chemical species are in a layer of thickness <650-900 nm. The particle size and structure of co-deposition were observed on each TS. Depth profiling by laser-induced breakdown spectroscopy (LIBS) suggests the presence of local and global impurities on the TSs resulting from the plasma-wall interaction (PWI). The processes involved in the PWI that caused erosion of EAST materials are heat flux and high energy excited impurity particles. The material is sputtered from the first wall plasma-facing components. Erosion and deposition processes occur simultaneously in the EAST. The migrated impurities get deposited globally on remote surfaces. A crack was observed in one of the W TSs due to a high heat load. The spectral intensity of co-deposition and substrate continuously changed during successive laser shots. |
| 资助项目 | National Magnetic Confine Fusion Energy Research and Development Program of China[2022YFE03200100] ; National Magnetic Confine Fusion Energy Research and Development Program of China[2019YFE03080100] ; National Magnetic Confine- ment Fusion Science Program of China[2017YFE0301304] ; National Magnetic Confine- ment Fusion Science Program of China[2017YFA0402501] ; National Natural Science Foundation of China[11605238] ; JSPS-CAS Bilateral Joint Research Projects[GJHZ201984] |
| WOS研究方向 | Materials Science ; Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:001249951100001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Magnetic Confine Fusion Energy Research and Development Program of China ; National Magnetic Confine- ment Fusion Science Program of China ; National Natural Science Foundation of China ; JSPS-CAS Bilateral Joint Research Projects |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/136490]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Hu, Zhenhua |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Sch Opt, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Chongqing Univ Posts & Telecommun, Coll Optoelect Engn, Chongqing 400065, Peoples R China 4.Maastricht Univ, Dept Chem Circular Engn, Maastricht, Netherlands |
| 推荐引用方式 GB/T 7714 | Imran, Muhammad,Hu, Zhenhua,Zheng, Peichao,et al. Studies of erosion-deposition of plasma-facing materials due to plasma-wall interactions in EAST tokamak[J]. JOURNAL OF NUCLEAR MATERIALS,2024,598. |
| APA | Imran, Muhammad.,Hu, Zhenhua.,Zheng, Peichao.,Sattar, Harse.,Khan, Muhammad Salman.,...&Ding, Fang.(2024).Studies of erosion-deposition of plasma-facing materials due to plasma-wall interactions in EAST tokamak.JOURNAL OF NUCLEAR MATERIALS,598. |
| MLA | Imran, Muhammad,et al."Studies of erosion-deposition of plasma-facing materials due to plasma-wall interactions in EAST tokamak".JOURNAL OF NUCLEAR MATERIALS 598(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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