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| 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 | |
| 发表期刊 | JOURNAL OF NUCLEAR MATERIALS
 |
| ISSN | 0022-3115 |
| 卷号 | 499页码:79-87 |
| 文章类型 | 期刊论文 |
| 摘要 | A 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. |
| 关键词 | Pyrolytic Carbon Coatings Fracture-toughness Mesocarbon-microbeads Reactor Infiltration Permeability Penetration Temperature Irradiation Protection |
| DOI | 10.1016/j.jnucmat.2017.11.019 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000425106800009 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.sinap.ac.cn/handle/331007/29041 |
| 专题 | 中科院上海应用物理研究所2011-2018年 |
| 作者单位 | 1.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 |
| 推荐引用方式 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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