Surface morphology and microstructure evolution of IG-110 graphite after xenon ion irradiation and subsequent annealing

doi:10.1016/j.jnucmat.2017.05.013

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	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
刊名	JOURNAL OF NUCLEAR MATERIALS
	2017
卷号	491 期号:-页码:213-220
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
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2017.05.013
文献子类	期刊论文
英文摘要	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.
WOS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
语种	英语
WOS记录号	WOS:000404306700024
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28840]
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
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.