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题名:
Preparation of ultrafine-grain graphite by liquid dispersion technique for inhibiting the liquid fluoride salt infiltration
作者: Lian, PF; Song, JL; Liu, ZJ; Zhang, JP; Zhao, YL; Gao, YT; Tao, ZC; He, ZT; Gao, LN; Xia, HH; Guo, QG; Huai, P; Zhou, XT
刊名: CARBON
出版日期: 2016
卷号: 102, 期号:-, 页码:208—215
关键词: PRESSURE INFILTRATION ; NUCLEAR GRAPHITE ; CONDUCTIVITY ; FOAMS
DOI: 10.1016/j.carbon.2016.02.018
通讯作者: Liu, ZJ (reprint author), Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China. ; Song, JL ; Huai, P (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Nucl Radiat & Nucl Energy Technol, Shanghai 201800, Peoples R China.
文章类型: 期刊文献
英文摘要: In this work, the mixtures of coke aggregates and coal tar pitch were used as starting materials to prepare ultrafine-grain graphites (UGG) by a liquid mixing method for the inhibition of molten salts in molten salt reactor (MSR). The average diameters of coke aggregates for UGG-1 and UGG-2 were respectively 10 and 5 mu m. The liquid dispersion technique could effectively prevent fine particles of raw materials from being conglomerated. Microstructure, thermophysical and other properties of the obtained graphite were studied. A high-pressure reactor was constructed to evaluate the molten salt penetration in the graphite. Compared to isostatic graphite (IG-110, TOYO TANSO CO., LTD.), UGG-2 possessed excellent properties such as high bending strength of 81.0 +/- 2.5 MPa, compressive strength of 133 +/- 3 MPa, low porosity of 14.0 +/- 0.1% and an average pore diameter of 0.52 +/- 0.01 mm. The fluoride salt volume occupation of IG-110 and UGG-1 under 1.5 atm was 14.4% and 3.7%, respectively. While the volume occupations of UGG-2 under 1.5 atm was only 0.17%, and continued to be steady even up to 5 atm with the increase of 0.45%, less than the critical index proposed for MSR of 0.5%. The UGG-2 could effectively inhibit liquid fluoride salt infiltration and was a promising candidate as neutron moderator or reflector materials for MSR. (C) 2016 Elsevier Ltd. All rights reserved.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000372808200023
ISSN号: 0008-6223
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25810
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Lian, PF,Song, JL,Liu, ZJ,et al. Preparation of ultrafine-grain graphite by liquid dispersion technique for inhibiting the liquid fluoride salt infiltration[J]. CARBON,2016-01-01,102(-):208—215.
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