Characterization of radiation defects in quasi-homogeneously damaged tungsten by PALS and TEM
文献类型：期刊论文
| 作者 | Liu, Feng1,2,3; Zhang, Chonghong4 ; He, Chunqing5; Zhou, Hai-Shan2; Ding, Fang2; Luo, Guang-Nan2
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| 刊名 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
 |
| 出版日期 | 2019-01-15 |
| 卷号 | 439页码:17-21 |
| 关键词 | Tungsten Heavy ion irradiation PALS/TEM characterizing |
| ISSN号 | 0168-583X |
| DOI | 10.1016/j.nimb.2018.11.009 |
| 英文摘要 | Tungsten (W) foils were irradiated with 122 MeV Ne-20 ions at the Heavy-ion Research Facility in Lanzhou, on which an energy degrader for tailoring the depth distribution of implanting ions was used. SRIM calculation showed that a quasi-homogeneous distribution of atomic displacement damage to 0.16 dpa within a depth of 50 mu m was produced in W. The features of radiation damage were characterized with positron annihilation life spectroscopy (PALS) and transmission electron microscopy (TEM) techniques in this study. Results from PALS study indicated that large vacancy clusters characterized by a long positron lifetime component of similar to 510 ps were formed in the irradiated W. These clusters may be the nano-voids (an average diameter of similar to 1 nm) exhibited in TEM imaging. Radiation-induced dislocation loops were also observed. Both perfect and Frank loops were manifested under the high resolution TEM observation. The experimental observation of a/2 < 1 1 0 > faulted loops in irradiated W was somewhat surprising and it may shed light on the origin of dislocation formation and their evolution in irradiated bcc metals. |
| WOS关键词 | NEUTRON-IRRADIATION ; TEMPERATURE ; ALLOYS ; DEUTERIUM ; EVOLUTION ; HYDROGEN ; LOOPS |
| 资助项目 | National Natural Science Foundation of China, China[11705232] ; National Natural Science Foundation of China, China[11505232] ; National Magnetic Confinement Fusion Science Program of China, China[2015GB109001] ; Open fund of Key Laboratory of Materials preparation and Protection for Harsh Environment, China, Ministry of Industry and Information Technology[56XCA18159] |
| WOS研究方向 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000455693100004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China, China ; National Magnetic Confinement Fusion Science Program of China, China ; Open fund of Key Laboratory of Materials preparation and Protection for Harsh Environment, China, Ministry of Industry and Information Technology |
| 源URL | [http://119.78.100.186/handle/113462/66562]  |
| 专题 | 中国科学院近代物理研究所 |
| 作者单位 | 1.Nanjing Univ Sci & Technol, Sch Sci, Nanjing 210094, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 3.Nanjing Univ Aeronaut & Astronaut, Key Lab Mat Preparat & Protect Harsh Environm, Minist Ind & Informat Technol, Nanjing 210094, Jiangsu, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 5.Wuhan Univ, Key Lab Nucl Solid State Phys Hubei Prov, Wuhan 430072, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Feng,Zhang, Chonghong,He, Chunqing,et al. Characterization of radiation defects in quasi-homogeneously damaged tungsten by PALS and TEM[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2019,439:17-21. |
| APA | Liu, Feng,Zhang, Chonghong,He, Chunqing,Zhou, Hai-Shan,Ding, Fang,&Luo, Guang-Nan.(2019).Characterization of radiation defects in quasi-homogeneously damaged tungsten by PALS and TEM.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,439,17-21. |
| MLA | Liu, Feng,et al."Characterization of radiation defects in quasi-homogeneously damaged tungsten by PALS and TEM".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 439(2019):17-21. |
入库方式： OAI收割
来源：近代物理研究所
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