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Diffusion Characterization of Hydrogen Isotopes in Hastelloy N Alloy for the Application of Fluoride-Salt-Cooled High-Temperature Reactors (FHRs)
Zhang, DX; Liu, W; Liu, WG
2020
Source PublicationFUSION SCIENCE AND TECHNOLOGY
ISSN1536-1055
Volume76Issue:4Pages:543-552
Subtype期刊论文
AbstractWith the method of gas-driven permeation, a series of permeation experiments was carried out using Hastelloy N alloy membrane in an elevated temperature range of 400 degrees C to 800 degrees C with different hydrogen isotopes. A complete set of permeability, diffusivity, and Sieverts' constant for hydrogen and deuterium in Hastelloy N alloy was successfully obtained. The isotope effect in the diffusion process was analyzed and compared with references. The ratios of diffusive transport parameters for hydrogen and deuterium were a permeability ratio of CYRILLIC CAPITAL LETTER EFH/CYRILLIC CAPITAL LETTER EFD = 1.32exp(0.34kJ/RT), a diffusivity ratio of D-H/D-D = 1.15exp(-0.41kJ/RT), and a Sieverts' constant ratio of K-S,K-H/K-S,K-D = 1.16exp(0.21kJ/RT). The result that the permeation flux of deuterium was decreased after introducing hydrogen could be used to suppress the permeation of tritium in future tritium control of the Fluoride-salt-cooled High-temperature Reactor (FHR). Compared with NiO, the Cr2O3 formed in the surface oxidation layer of Hastelloy N alloy showed better hydrogen permeation barrier performance after baking above 700 degrees C in air.
KeywordDEUTERIUM PERMEATION NICKEL TRANSPORT RANGE
DOI10.1080/15361055.2020.1725368
Indexed BySCI ; EI
Language英语
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Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32788
Collection中科院上海应用物理研究所2011-2020年
AffiliationChinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jia Luo Rd, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Zhang, DX,Liu, W,Liu, WG. Diffusion Characterization of Hydrogen Isotopes in Hastelloy N Alloy for the Application of Fluoride-Salt-Cooled High-Temperature Reactors (FHRs)[J]. FUSION SCIENCE AND TECHNOLOGY,2020,76(4):543-552.
APA Zhang, DX,Liu, W,&Liu, WG.(2020).Diffusion Characterization of Hydrogen Isotopes in Hastelloy N Alloy for the Application of Fluoride-Salt-Cooled High-Temperature Reactors (FHRs).FUSION SCIENCE AND TECHNOLOGY,76(4),543-552.
MLA Zhang, DX,et al."Diffusion Characterization of Hydrogen Isotopes in Hastelloy N Alloy for the Application of Fluoride-Salt-Cooled High-Temperature Reactors (FHRs)".FUSION SCIENCE AND TECHNOLOGY 76.4(2020):543-552.
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