CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Infiltration of graphite by molten 2LiF-BeF2 salt
Tang, H; Qi, W; He, ZT; Xia, HH; Huang, Q; Zhang, C; Wang, X; Song, JL; Huai, P; Zhou, XT
2017
Source PublicationJOURNAL OF MATERIALS SCIENCE
ISSN0022-2461
Volume52Issue:19Pages:11346-11359
Subtype期刊论文
AbstractWith the aim of developing neutron moderator and neutron reflector materials for fluoride-salt-cooled high-temperature reactors (FHRs), static infiltration tests were performed on graphite materials in molten 2LiF-BeF2 (FLiBe) salt, which is a potential primary coolant, at 700 degrees C and various pressures. The weight gain ratios of four grades (NBG-18, IG-110, NG-CT-10, and NG-CT-50) of graphite after infiltration were measured to determine their infiltration curves. The threshold pressure for FLiBe salt infiltration for the ultrafine-grained graphite (NG-CT-50) was greater than 600 kPa and much higher than those of the other three grades (medium-grained/ fine-grained graphites), indicating that this graphite grade more probably resists salt infiltration in FHRs than other grades of graphite. However, if the threshold pressure is exceeded, it has the highest potential capacity for infiltrated salt over the pressures tested. The four grades were also characterized using mercury intrusion porosimetry. It was found that the infiltration curves of these two unwetting liquids were very similar. Scanning electron microscopy characterization showed that the FLiBe salt was distributed relatively uniformly in all four grades, indicating the presence of interconnected networks of open pores throughout the samples. X-ray diffraction patterns showed that infiltration test at high pressure led to an improved structural order and a decreased d-spacing in graphite.
KeywordInert-gas Pressure Nuclear Graphite Behavior Ig-110 Metal
DOI10.1007/s10853-017-1310-4
WOS KeywordINERT-GAS PRESSURE ; NUCLEAR GRAPHITE ; BEHAVIOR ; IG-110 ; METAL
Indexed BySCI
Language英语
WOS IDWOS:000405306300017
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28698
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Tang, H,Qi, W,He, ZT,et al. Infiltration of graphite by molten 2LiF-BeF2 salt[J]. JOURNAL OF MATERIALS SCIENCE,2017,52(19):11346-11359.
APA Tang, H.,Qi, W.,He, ZT.,Xia, HH.,Huang, Q.,...&Zhou, XT.(2017).Infiltration of graphite by molten 2LiF-BeF2 salt.JOURNAL OF MATERIALS SCIENCE,52(19),11346-11359.
MLA Tang, H,et al."Infiltration of graphite by molten 2LiF-BeF2 salt".JOURNAL OF MATERIALS SCIENCE 52.19(2017):11346-11359.
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