CAS OpenIR
Influence of ion irradiations on the microstructure in the tritium breeder material Li2TiO3
Wang, Jing1,2; Xu, Yuping1; Liu, Haodong1,2; Xiang, Maoqiao3,4; Zhou, Haishan1; Zhang, Yingchun3; Luo, Guang-nan1,2; Qi, Qiang1
2019-07-01
Source PublicationNUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN0168-583X
Volume450Pages:189-194
AbstractTritium 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.
KeywordIrradiation Li2TiO3 Defects ESR
DOI10.1016/j.nimb.2018.04.013
Language英语
WOS KeywordRESEARCH-AND-DEVELOPMENT ; RELEASE ; ANNIHILATION ; DISORDER ; DEFECTS ; OXYGEN
Funding ProjectNational 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 Research AreaInstruments & Instrumentation ; Nuclear Science & Technology ; Physics
WOS SubjectInstruments & Instrumentation ; Nuclear Science & Technology ; Physics, Atomic, Molecular & Chemical ; Physics, Nuclear
Funding OrganizationNational Natural Science Foundation of China ; National Magnetic Confinement Fusion Science Program ; Technological Development Grant of Hefei Science Center of CAS
WOS IDWOS:000474501400039
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30281
Collection中国科学院过程工程研究所
Corresponding AuthorQi, Qiang
Affiliation1.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
Recommended Citation
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.
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