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题名:
Helium permeability of different structure pyrolytic carbon coatings on graphite prepared at low temperature and atmosphere pressure
作者: Song, JL; Zhao, YL; Zhang, WT; He, XJ; Zhang, DS; He, ZT; Gao, YT; Jin, C; Xia, HH; Wang, JQ; Huai, P; Zhou, XT
刊名: JOURNAL OF NUCLEAR MATERIALS
出版日期: 2016
卷号: 468, 期号:-, 页码:31—36
关键词: LIQUID FLUORIDE SALT ; XE-135 PENETRATION ; ISOTROPIC GRAPHITE ; NUCLEAR GRAPHITE ; GAS-PERMEABILITY ; FUSION-REACTOR
DOI: 10.1016/j.jnucmat.2015.10.033
通讯作者: Zhao, YL (reprint author), Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China.
文章类型: 期刊文献
英文摘要: Low density isotropic pyrolytic carbon (IPyC) and high density anisotropic pyrolytic carbon (APyC) coatings have been prepared at low temperature and atmosphere pressure. Helium gas permeabilities of nuclear graphite coated with IPyC and APyC of different thickness are studied using a vacuum apparatus. Both the permeation rates of the treated graphite gradually decrease with the increasing thickness of the coatings. The IPyC and APyC coatings can reduce the gas permeability coefficient of the samples by three and five orders of magnitude, respectively. The permeability difference is related to the microscopic structure, i.e., pores, as confirmed by scanning electron microscopy, mercury injection and X-ray tomography experiments. The changes of the permeability owing to heat cycles are observed to be negligible. (C) 2015 Elsevier B.V. All rights reserved.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000367761700005
ISSN号: 0022-3115
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25738
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Song, JL,Zhao, YL,Zhang, WT,et al. Helium permeability of different structure pyrolytic carbon coatings on graphite prepared at low temperature and atmosphere pressure[J]. JOURNAL OF NUCLEAR MATERIALS,2016-01-01,468(-):31—36.
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