| Deuterium retention in tungsten films after different heat treatments | |
| Department | 固体润滑国家重点实验室 |
Wang P(王鹏)1 ; Jacob, W.2; Elgeti, S.2
| |
| 2015 | |
| Source Publication | Journal of Nuclear Materials
 |
| ISSN | 0022-3115 |
| Volume | 456Pages:192-199 |
| Abstract | Tungsten films deposited by magnetron sputtering on polycrystalline tungsten substrates were used as a model system to study the influence of the film microstructure on deuterium retention behavior. Different microstructures were produced by annealing the films up to recrystallization temperature and the corresponding structural changes were investigated by scanning electron microscopy combined with focused ion beam (FIB) cross sectioning. The influence of the induced structural changes on D retention was investigated by both nuclear reaction analysis and temperature-programmed desorption. D concentration in the investigated W films is higher than in polycrystalline bulk tungsten by a factor of 3. D retention in the films decreases as a function of annealing temperature. After annealing at 2000 K, FIB cross-section images reveal that cavities appeared at the grain boundaries within the film and at the initial interface between the W film and W substrate. This new microstructure strongly affects the D depth profile and leads to the increase of D retention. Although a further increase of the holding time at 2000 K or an increase of the annealing temperature to 2150 K lead to the reduction of the retained D amount, the D concentration in the recrystallized W films cannot be reduced to a level as low as that of bulk W recrystallized at 2000 K for 30 min. |
| Subject Area | 材料科学与物理化学 |
| DOI | org/10.1016/j.jnucm.at.2014.09.023 |
| Funding Organization | The stay of P. Wang at Max-Planck Institute for Plasma Physics in Garching was funded through a bilateral agreement between Max-Planck Society and the Chinese Academy of Sciences;funding from the EURATOM research and training program 2014–2018 |
| Indexed By | SCI |
| If | 2.199 |
| Language | 英语 |
| Funding Project | 辐照环境下润滑与防护材料研究 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/18613 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Jacob, W. |
| Affiliation | 1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China 2.Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, 85748 Garching, Germany |
| Recommended Citation GB/T 7714 | Wang P,Jacob, W.,Elgeti, S.. Deuterium retention in tungsten films after different heat treatments[J]. Journal of Nuclear Materials,2015,456:192-199. |
| APA | Wang P,Jacob, W.,&Elgeti, S..(2015).Deuterium retention in tungsten films after different heat treatments.Journal of Nuclear Materials,456,192-199. |
| MLA | Wang P,et al."Deuterium retention in tungsten films after different heat treatments".Journal of Nuclear Materials 456(2015):192-199. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Deuterium retention （1107KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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