Deuterium retention and release behaviours of tungsten and deuterium co-deposited layers | |
Department | 固体润滑国家重点实验室 |
Qiao L(乔丽)1,2; Zhang, H. W.3; Xu J(许佼)1; Chai LQ(柴利强)1; Hu, M.1; Wang P(王鹏)1; Wang P(王鹏) | |
2018 | |
Source Publication | Journal of Nuclear Materials |
ISSN | 0022-3115 |
Issue | 502Pages:247-254 |
Abstract | Tungsten (W) layer deposited in argon and deuterium atmosphere by magnetron sputtering was used as a model system to study the deuterium (D) retention and release behavior in co-deposited W layer. After deposition several selected samples were exposed in deuterium plasma at 370 K with a flux of 4.0 × 1021 D/(m2 s) up to a fluence of 1.1 × 1025 D/m2. Structures of co-deposited W layers are investigated by field-emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD), and the corresponding D retention and release behaviors are studied as functions of deposition and exposure parameters using thermal desorption spectroscopy (TDS). Two main D release peaks were detected from TDS spectra located near 600 and 800 K in these W and D co-deposited layers, and total deuterium retention increased linearly as a function of W layer's thickness. After deuterium plasma exposure, the total D retention amount in W layer increases significantly and D release peak shifts to lower temperature. Clearly, despite the high density of defects expected in co-deposited W layers, the initial deuterium retention before exposure to the deuterium plasma is low even for the samples with a W&D layer. But due to the high densities of defects, during the deuterium plasma exposure the deuterium retention increases faster for co-deposited layer than for the bulk W sample. |
Keyword | Deuterium Retention Deuterium Release Tungsten Co-deposited Layers Magnetron Sputtering |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.jnucmat.2018.02.009 |
Funding Organization | the National Natural Science Foundation of China with the Grant No. 11475236 |
Indexed By | SCI |
If | 2.447 |
Language | 英语 |
Funding Project | 辐射环境下润滑与防护材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/23689 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wang P(王鹏) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China 3.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China |
Recommended Citation GB/T 7714 | Qiao L,Zhang, H. W.,Xu J,et al. Deuterium retention and release behaviours of tungsten and deuterium co-deposited layers[J]. Journal of Nuclear Materials,2018(502):247-254. |
APA | Qiao L.,Zhang, H. W..,Xu J.,Chai LQ.,Hu, M..,...&Wang P.(2018).Deuterium retention and release behaviours of tungsten and deuterium co-deposited layers.Journal of Nuclear Materials(502),247-254. |
MLA | Qiao L,et al."Deuterium retention and release behaviours of tungsten and deuterium co-deposited layers".Journal of Nuclear Materials .502(2018):247-254. |
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