CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Improving molten fluoride salt and Xe-135 barrier property of nuclear graphite by phenolic resin impregnation process
He, Z; Lian, PF; Song, Y; Liu, ZJ; Song, JL; Zhang, JP; Feng, J; Yan, X; Guo, QG
2018
Source PublicationJOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
Volume499Pages:79-87
Subtype期刊论文
AbstractA densification process has been conducted on isostatic graphite (IG-110, TOYO TANSO CO., Ltd., Japan) by impregnating phenolic resin to get the densified isostatic graphite (D-IG-110) with pore diameter of nearly 11 nm specifically for molten salt reactor application. The microstructure, mechanical, thermo-physical and other properties of graphite were systematically investigated and compared before and after the densification process. The molten fluoride salt and Xe-135 penetration in the graphite were evaluated in a high-pressure reactor and a vacuum device, respectively. Results indicated that D-IG-110 exhibited improved properties including infiltration resistance to molten fluoride salt and Xe-135 as compared to IG-110 due to its low porosity of 2.8%, the average pore diameter of 11 nm and even smaller open pores on the surface of the graphite. The fluoride salt infiltration amount of IG-110 was 13.5 wt% under 1.5 atm and tended to be saturated under 3 atm with the fluoride salt occupation of 14.8 wt%. As to the D-IG-110, no salts could be detected even up to 10 atm attempted loading. The helium diffusion coefficient of D-IG-110 was 6.92 x 10 x 8 cm(2)/s, significantly less than 1.21 x 10(-2) cm(2)/s of IG-110. If these as-produced properties for impregnated D-IG-110 could be retained during MSR operation, the material could prove effective at inhibiting molten fluoride salt and Xe-135 inventories in the graphite. (C) 2017 Elsevier B.V. All rights reserved.
KeywordPyrolytic Carbon Coatings Fracture-toughness Mesocarbon-microbeads Reactor Infiltration Permeability Penetration Temperature Irradiation Protection
DOI10.1016/j.jnucmat.2017.11.019
Indexed BySCI
Language英语
WOS IDWOS:000425106800009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/29041
Collection中科院上海应用物理研究所2011-2018年
Affiliation1.He, Z
2.Lian, PF
3.Song, Y
4.Liu, ZJ
5.Song, JL
6.Zhang, JP
7.Feng, J
8.Yan, X
9.Guo, QG
Recommended Citation
GB/T 7714
He, Z,Lian, PF,Song, Y,et al. Improving molten fluoride salt and Xe-135 barrier property of nuclear graphite by phenolic resin impregnation process[J]. JOURNAL OF NUCLEAR MATERIALS,2018,499:79-87.
APA He, Z.,Lian, PF.,Song, Y.,Liu, ZJ.,Song, JL.,...&Guo, QG.(2018).Improving molten fluoride salt and Xe-135 barrier property of nuclear graphite by phenolic resin impregnation process.JOURNAL OF NUCLEAR MATERIALS,499,79-87.
MLA He, Z,et al."Improving molten fluoride salt and Xe-135 barrier property of nuclear graphite by phenolic resin impregnation process".JOURNAL OF NUCLEAR MATERIALS 499(2018):79-87.
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