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The influences of deuterium irradiation defects on mechanical properties for ceramic breeder material Li2TiO3
Wang, Jing1,2; Xiang, Maoqiao3; Xu, Yuping1,2; Liu, Feng1; Lu, Tao1; Liu, Haodong1,2; Zhou, Haishan1; Luo, Guang-Nan1,2,4,5; Qi, Qiang1
2017-10-01
Source PublicationFUSION ENGINEERING AND DESIGN
Volume121Pages:182-187
AbstractTritium breeder materials are significant for blanket design of fusion reactor. However, during blanket operation, the ceramic breeder materials will be subject to neutron irradiation, which could be detrimental to mechanical properties. Because of good chemical stability and available tritium release behavior, Li2TiO3 is becoming one of candidate ceramic breeder materials. In this study, Li2TiO3 samples are irradiated by 120 keV deuterium ions. For sample characterization, the phase composition is investigated by X-ray diffraction (XRD) before and after irradiation. After deuterium irradiation, the Electron Spin Resonance (ESR) experiments are employed to investigate the irradiation defects. Micro-hardness measurement is applied to study the changes of mechanical properties. XRD results indicate that Li2TiO3 crystals are damaged by deuterium irradiation, but no new phases are produced. According to ESR experiment, the main defect type after deuterium irradiation is F-center which, are vacancies trapping one electron. According to Vickers hardness measurement, size effect of micro-hardness is observed. The Meyer coefficient obtained in the experiment is 1.65, which is less than 2. Vickers hardness increases as applied loads decrease which are consistent with Meyer theory. And Vickers hardness of Li2TiO3 decreases as irradiation doses increase. (C) 2017 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordLi2tio3 Mechanical Properties Deuterium Irradiation Defect
WOS HeadingsScience & Technology ; Technology
Funding OrganizationNational Natural Science Foundation of China(11605230 ; National Natural Science Foundation of China(11605230 ; National Magnetic Confinement Fusion Science Program(2013GB108004 ; National Magnetic Confinement Fusion Science Program(2013GB108004 ; Technological Development Grant of Hefei Science Center of CAS(2014TDG-HSC003) ; Technological Development Grant of Hefei Science Center of CAS(2014TDG-HSC003) ; 51372017 ; 51372017 ; 2013GB105002) ; 2013GB105002) ; 11405201) ; 11405201) ; National Natural Science Foundation of China(11605230 ; National Natural Science Foundation of China(11605230 ; National Magnetic Confinement Fusion Science Program(2013GB108004 ; National Magnetic Confinement Fusion Science Program(2013GB108004 ; Technological Development Grant of Hefei Science Center of CAS(2014TDG-HSC003) ; Technological Development Grant of Hefei Science Center of CAS(2014TDG-HSC003) ; 51372017 ; 51372017 ; 2013GB105002) ; 2013GB105002) ; 11405201) ; 11405201)
DOI10.1016/j.fusengdes.2017.07.015
WOS KeywordLITHIUM METATITANATE ; PEBBLES ; RELEASE ; ITER
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(11605230 ; National Natural Science Foundation of China(11605230 ; National Magnetic Confinement Fusion Science Program(2013GB108004 ; National Magnetic Confinement Fusion Science Program(2013GB108004 ; Technological Development Grant of Hefei Science Center of CAS(2014TDG-HSC003) ; Technological Development Grant of Hefei Science Center of CAS(2014TDG-HSC003) ; 51372017 ; 51372017 ; 2013GB105002) ; 2013GB105002) ; 11405201) ; 11405201) ; National Natural Science Foundation of China(11605230 ; National Natural Science Foundation of China(11605230 ; National Magnetic Confinement Fusion Science Program(2013GB108004 ; National Magnetic Confinement Fusion Science Program(2013GB108004 ; Technological Development Grant of Hefei Science Center of CAS(2014TDG-HSC003) ; Technological Development Grant of Hefei Science Center of CAS(2014TDG-HSC003) ; 51372017 ; 51372017 ; 2013GB105002) ; 2013GB105002) ; 11405201) ; 11405201)
WOS Research AreaNuclear Science & Technology
WOS SubjectNuclear Science & Technology
WOS IDWOS:000411550100026
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33739
Collection中科院等离子体物理研究所
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, Hefei Sci Ctr, Hefei 230027, Anhui, Peoples R China
5.Hefei Ctr Phys Sci & Technol, Hefei 230022, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jing,Xiang, Maoqiao,Xu, Yuping,et al. The influences of deuterium irradiation defects on mechanical properties for ceramic breeder material Li2TiO3[J]. FUSION ENGINEERING AND DESIGN,2017,121:182-187.
APA Wang, Jing.,Xiang, Maoqiao.,Xu, Yuping.,Liu, Feng.,Lu, Tao.,...&Qi, Qiang.(2017).The influences of deuterium irradiation defects on mechanical properties for ceramic breeder material Li2TiO3.FUSION ENGINEERING AND DESIGN,121,182-187.
MLA Wang, Jing,et al."The influences of deuterium irradiation defects on mechanical properties for ceramic breeder material Li2TiO3".FUSION ENGINEERING AND DESIGN 121(2017):182-187.
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