Helium permeability of different structure pyrolytic carbon coatings on graphite prepared at low temperature and atmosphere pressure
Song, JL; Zhao, YL; Zhang, WT; He, XJ; Zhang, DS; He, ZT; Gao, YT; Jin, C; Xia, HH; Wang, JQ; Huai, P; Zhou, XT; Zhao, YL (reprint author), Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China.
2016
发表期刊JOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
卷号468期号:-页码:31—36
文章类型期刊文献
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.
关键词Liquid Fluoride Salt Xe-135 Penetration Isotropic Graphite Nuclear Graphite Gas-permeability Fusion-reactor
DOI10.1016/j.jnucmat.2015.10.033
收录类别SCI
语种英语
WOS记录号WOS:000367761700005
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25738
专题中科院上海应用物理研究所2011-2018年
通讯作者Zhao, YL (reprint author), Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China.
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GB/T 7714
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,2016,468(-):31—36.
APA Song, JL.,Zhao, YL.,Zhang, WT.,He, XJ.,Zhang, DS.,...&Zhao, YL .(2016).Helium permeability of different structure pyrolytic carbon coatings on graphite prepared at low temperature and atmosphere pressure.JOURNAL OF NUCLEAR MATERIALS,468(-),31—36.
MLA Song, JL,et al."Helium permeability of different structure pyrolytic carbon coatings on graphite prepared at low temperature and atmosphere pressure".JOURNAL OF NUCLEAR MATERIALS 468.-(2016):31—36.
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