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Preparation of pyrolytic carbon coating on graphite for inhibiting liquid fluoride salt and Xe-135 penetration for molten salt breeder reactor
J. L.; Zhao Song, Y. L.; He, X. J.; Zhang, B. L.; Xu, L.; He, Z. T.; Zhang, D. S.; Gao, L. N.; Xia, H. H.; Zhou, X. T.; Huai, P.; Bai, S.
2015
Source PublicationJournal of Nuclear Materials
ISSN0022-3115
Volume456Pages:33-40
AbstractA fixed-bed deposition method was used to prepare rough laminar pyrolytic carbon coating (RLPyC) on graphite for inhibiting liquid fluoride salt and Xe-135 penetration during use in molten salt breeder reactor. The RLPyC coating possessed a graphitization degree of 44% and had good contact with graphite substrate. A high-pressure reactor was constructed to evaluate the molten salt infiltration in the isostatic graphite (IG-110, TOY TANSO CO., LTD.) and RLPyC coated graphite under 1.01, 1.52, 3.04, 5.07 and 10.13 x 10(5) Pa for 12 h. Mercury injection and molten-salt infiltration experiments indicated the porosity and the salt-infiltration amount of 18.4% and 13.5 wt% under 1.52 x 10(5) Pa of IC-110, which was much less than 1.2% and 0.06 wt% under 10.13 x 10(5) Pa of the RLPyC, respectively. A vacuum device was constructed to evaluate the Xe-135 penetration in the graphite. The helium diffusion coefficient of RLPyC coated graphite was 2.16 x 10(-12) m(2)/s, much less than 1.21 x 10(-6) m(2)/s of the graphite. Thermal cycle experiment indicated the coatings possessed excellent thermal stability. The coated graphite could effectively inhibit the liquid fluoride salt and Xe135 penetration. (C) 2014 Elsevier B.V. All rights reserved.
description.department[song, jinliang ; he, xiujie ; zhang, baoliang ; he, zhoutong ; zhang, dongsheng ; gao, lina ; xia, huihao ; zhou, xingtai ; huai, ping] chinese acad sci, shanghai inst appl phys, key lab nucl radiat & nucl energy technol, shanghai 201800, peoples r china. [zhao, yanling] univ jinan, sch mat sci & engn, jinan 250022, peoples r china. [xu, li ; bai, shuo] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; zhao, yl (reprint author), univ jinan, sch mat sci & engn, jinan 250022, peoples r china. ; jlsong1982@yeah.net
KeywordIsotropic Nuclear Graphite Conductivity Irradiation Gas
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73916
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
J. L.,Zhao Song, Y. L.,He, X. J.,et al. Preparation of pyrolytic carbon coating on graphite for inhibiting liquid fluoride salt and Xe-135 penetration for molten salt breeder reactor[J]. Journal of Nuclear Materials,2015,456:33-40.
APA J. L..,Zhao Song, Y. L..,He, X. J..,Zhang, B. L..,Xu, L..,...&Bai, S..(2015).Preparation of pyrolytic carbon coating on graphite for inhibiting liquid fluoride salt and Xe-135 penetration for molten salt breeder reactor.Journal of Nuclear Materials,456,33-40.
MLA J. L.,et al."Preparation of pyrolytic carbon coating on graphite for inhibiting liquid fluoride salt and Xe-135 penetration for molten salt breeder reactor".Journal of Nuclear Materials 456(2015):33-40.
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