CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Mesocarbon microbead based graphite for spherical fuel element to inhibit the infiltration of liquid fluoride salt in molten salt reactor
Zhong, YJ; Zhang, JP; Lin, J; Xu, LJ; Zhang, F; Xu, HX; Chen, Y; Jiang, HT; Li, ZW; Zhu, ZY; Guo, QG
2017
Source PublicationJOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
Volume490Issue:-Pages:34-40
Subtype期刊论文
AbstractMesocarbon microbeads (MCMB) and quasi-isostatic pressing method were used to prepare MCMB based graphite (MG) for spherical fuel element to inhibit the infiltration of liquid fluoride salt in molten salt reactor (MSR). Characteristics of mercury infiltration and molten salt infiltration in MG were investigated and compared with A3-3 (graphite for spherical fuel element in high temperature gas cooled reactor) to identify the infiltration behaviors. The results indicated that MG had a low porosity about 14%, and an average pore diameter of 96 nm. Fluoride salt occupation of A3-3 (average pore diameter was 760 nm) was 10 wt% under 6.5 atm, whereas salt gain did not infiltrate in MG even up to 6.5 atm. It demonstrated that MG could inhibit the infiltration of liquid fluoride salt effectively. Coefficient of thermal expansion (LIE) of MG lies in 6.01 x 10(-6) K-1 (alpha(parallel to)) and 6.15 x 10(-6) K-1 (alpha(perpendicular to)) at the temperature range of 25-700 degrees C. The anisotropy factor of MG calculated by CTE maintained below 1.02, which could meet the requirement of the spherical fuel element (below 1.30). The constant isotropic property of MG is beneficial for the integrity and safety of the graphite used in the spherical fuel element for a MSR. (C) 2017 Elsevier B.V. All rights reserved.
KeywordIsotropic Graphite
DOI10.1016/j.jnucmat.2017.04.003
WOS KeywordISOTROPIC GRAPHITE
Indexed BySCI
Language英语
WOS IDWOS:000403132300004
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28731
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Zhong, YJ,Zhang, JP,Lin, J,et al. Mesocarbon microbead based graphite for spherical fuel element to inhibit the infiltration of liquid fluoride salt in molten salt reactor[J]. JOURNAL OF NUCLEAR MATERIALS,2017,490(-):34-40.
APA Zhong, YJ.,Zhang, JP.,Lin, J.,Xu, LJ.,Zhang, F.,...&Guo, QG.(2017).Mesocarbon microbead based graphite for spherical fuel element to inhibit the infiltration of liquid fluoride salt in molten salt reactor.JOURNAL OF NUCLEAR MATERIALS,490(-),34-40.
MLA Zhong, YJ,et al."Mesocarbon microbead based graphite for spherical fuel element to inhibit the infiltration of liquid fluoride salt in molten salt reactor".JOURNAL OF NUCLEAR MATERIALS 490.-(2017):34-40.
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