Surface morphology and microstructure evolution of IG-110 graphite after xenon ion irradiation and subsequent annealing
Huang, Q; Li, JJ; Liu, RD; Yan, L; Huang, HF
2017
发表期刊JOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
卷号491期号:-页码:213-220
文章类型期刊论文
摘要IG-110 graphite samples were polished and irradiated with Xe ions at various fluences, then annealed at high temperatures up to 1100 degrees C. After irradiation, small hills were found on the polished surfaces, indicating an anisotropic swelling induced by irradiation. Around 30% swelling at a fluence of 2 x 10(15) ions/cm(2) was characterized using atomic force microscopy. Severe swelling of the graphite crystallites caused stresses between adjacent crystallites, but leaved no intergranular cracks on the polished surface, which was ascribed to irradiation-induced creep of graphite. The pore morphology was affected by the anisotropic swelling. We found many contracted pores but only one expanded pore, indicating a decreased porosity induced by irradiation. After annealing at 1100 degrees C, TEM characterization showed clearly increased lattice order and decreased width of the (002) diffraction arc, indicating the annihilation of dislocations and recovery of basal plane rotations. Annealing-induced recrystallization of damaged graphite led to recovery of the crystallites' swelling and many small cracks appearing on the samples' surfaces. (C) 2017 Elsevier B.V. All rights reserved.
关键词Transmission Electron-microscopy Isotropic Nuclear Graphite Fine Grain Graphite Neutron-irradiation Dimensional Changes Polycrystalline Graphite Proton Irradiation Implanted Graphite Radiation-damage Grade Graphite
DOI10.1016/j.jnucmat.2017.05.013
关键词[WOS]TRANSMISSION ELECTRON-MICROSCOPY ; ISOTROPIC NUCLEAR GRAPHITE ; FINE GRAIN GRAPHITE ; NEUTRON-IRRADIATION ; DIMENSIONAL CHANGES ; POLYCRYSTALLINE GRAPHITE ; PROTON IRRADIATION ; IMPLANTED GRAPHITE ; RADIATION-DAMAGE ; GRADE GRAPHITE
收录类别SCI
语种英语
WOS记录号WOS:000404306700024
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28840
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Huang, Q,Li, JJ,Liu, RD,et al. Surface morphology and microstructure evolution of IG-110 graphite after xenon ion irradiation and subsequent annealing[J]. JOURNAL OF NUCLEAR MATERIALS,2017,491(-):213-220.
APA Huang, Q,Li, JJ,Liu, RD,Yan, L,&Huang, HF.(2017).Surface morphology and microstructure evolution of IG-110 graphite after xenon ion irradiation and subsequent annealing.JOURNAL OF NUCLEAR MATERIALS,491(-),213-220.
MLA Huang, Q,et al."Surface morphology and microstructure evolution of IG-110 graphite after xenon ion irradiation and subsequent annealing".JOURNAL OF NUCLEAR MATERIALS 491.-(2017):213-220.
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