Pore structure evolution of IG-110 graphite during argon ion irradiation at 600 degrees C
Huang, Q; Tang, H; Liu, Y; Long, XH; Liu, P; Wang, XL; Lei, QT; Deng, Q; Wang, YQ
刊名JOURNAL OF MATERIALS SCIENCE
2019
卷号54期号:8页码:6098—6110
关键词TRANSMISSION ELECTRON-MICROSCOPY NEUTRON-IRRADIATION DIMENSIONAL CHANGES PROTON IRRADIATION NUCLEAR GRAPHITE RADIATION-DAMAGE PROPERTY ENERGY RAMAN
ISSN号0022-2461
DOI10.1007/s10853-019-03329-7
文献子类期刊论文
英文摘要Irradiation-induced pore structure evolution of graphite is especially important for its applications in molten salt reactors. If irradiation expands the pores, more salt will intrude into graphite components, which is undesired. In this study, multi-energy argon ions were used instead of neutrons to introduce displacement damage in IG-110 graphite at 600 degrees C, in order to investigate pore structure evolution of graphite during irradiation. About 71% of the pores shrank after irradiation to 21dpa, which was proved to be a result of c-axis swelling of graphite crystallites. In contrast, only 12% of the pores expanded. The total area of gas-escape pores gradually decreased to 89% at 21dpa. At the turnaround dose and beyond, extensively distributed submicron pores were observed, indicating an increase in newborn porosity. Combining the evolution of original pores and newborn pores, a model depicting the overall porosity's evolution during irradiation is given in this study. Because the original porosity decreases continuously with dose and newborn pores are small in sizes, this study strongly suggests that irradiation will not facilitate salt intrusion into graphite.
语种英语
内容类型期刊论文
源URL[http://ir.sinap.ac.cn/handle/331007/31761]  
专题上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位1.Shandong Univ, Key Lab Particle Phys & Particle Irradiat MOE, State Key Lab Crystal Mat, Sch Phys, Jinan 250100, Shandong, Peoples R China;
2.Fudan Univ, Appl Ion Beam Phys Lab, Inst Modern Phys, Shanghai 200433, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China;
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GB/T 7714
Huang, Q,Tang, H,Liu, Y,et al. Pore structure evolution of IG-110 graphite during argon ion irradiation at 600 degrees C[J]. JOURNAL OF MATERIALS SCIENCE,2019,54(8):6098—6110.
APA Huang, Q.,Tang, H.,Liu, Y.,Long, XH.,Liu, P.,...&Wang, YQ.(2019).Pore structure evolution of IG-110 graphite during argon ion irradiation at 600 degrees C.JOURNAL OF MATERIALS SCIENCE,54(8),6098—6110.
MLA Huang, Q,et al."Pore structure evolution of IG-110 graphite during argon ion irradiation at 600 degrees C".JOURNAL OF MATERIALS SCIENCE 54.8(2019):6098—6110.
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