Influence of ion irradiations on the microstructure in the tritium breeder material Li2TiO3

doi:10.1016/j.nimb.2018.04.013

	Influence of ion irradiations on the microstructure in the tritium breeder material Li2TiO3
	Wang, Jing 1,2; Xu, Yuping 1; Liu, Haodong 1,2; Xiang, Maoqiao 3,4; Zhou, Haishan 1; Zhang, Yingchun 3; Luo, Guang-nan 1,2; Qi, Qiang 1
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
	2019-07-01
卷号	450 页码:189-194
关键词	Irradiation Li2TiO3 Defects ESR
ISSN号	0168-583X
DOI	10.1016/j.nimb.2018.04.013
英文摘要	Tritium breeder materials are significant for the blanket design of a fusion reactor. Because of its good chemical stability and available tritium release behavior, Li2TiO3 has been selected as one of leading candidates for ceramic breeder materials. During a blanket operation, defects are introduced into tritium breeder materials by high energy neutrons and energetic particles from nuclear reactions, resulting in performance degration of the materials. He and O ion irradiation were applied to introduce irradiation damage into Li2TiO3 in this study. X-ray Diffraction (XRD) and Raman spectra experiments were performed to identify the evolution of the Li2TiO3 microstructure. The experimental results show that the atomic arrangement in Li2TiO3 is strongly disordered by the ion irradiation. The destruction of long-range order is confirmed by the reduction in XRD intensities. The destruction of short-range order is validated by the reduction in the Raman intensities and disappearance of Raman bands with increasing irradiation dose. The disorder in Li2TiO3 structure is considered to be associated with the species and energy of the ions. In order to further clarify the defects induced by ion irradiation, Electron Spin Resonance (ESR) was employed. E-centers which are oxygen vacancies occupied by one electron have been formed by ion irradiation. Compared with He ion irradiation, O ion irradiation produces relatively less E-centers, but more Ti3+ defects. These different defects induced by irradiation are discussed in relation to the disorder of microstructure.
资助项目	National Natural Science Foundation of China[11405201] ; National Natural Science Foundation of China[11605230] ; National Natural Science Foundation of China[51372017] ; National Magnetic Confinement Fusion Science Program[2013GB108004] ; National Magnetic Confinement Fusion Science Program[2013GB105002] ; Technological Development Grant of Hefei Science Center of CAS[2014TDG-HSC003]
WOS关键词	RESEARCH-AND-DEVELOPMENT ; RELEASE ; ANNIHILATION ; DISORDER ; DEFECTS ; OXYGEN
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000474501400039
资助机构	National Natural Science Foundation of China ; National Magnetic Confinement Fusion Science Program ; Technological Development Grant of Hefei Science Center of CAS
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/30280]
专题	中国科学院过程工程研究所
通讯作者	Qi, Qiang
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, 30 Xueyuan Rd, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jing,Xu, Yuping,Liu, Haodong,et al. Influence of ion irradiations on the microstructure in the tritium breeder material Li2TiO3[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2019,450:189-194.
APA	Wang, Jing.,Xu, Yuping.,Liu, Haodong.,Xiang, Maoqiao.,Zhou, Haishan.,...&Qi, Qiang.(2019).Influence of ion irradiations on the microstructure in the tritium breeder material Li2TiO3.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,450,189-194.
MLA	Wang, Jing,et al."Influence of ion irradiations on the microstructure in the tritium breeder material Li2TiO3".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 450(2019):189-194.