Multi-field dependence responses and their micro-structure analysis in YBa2Cu3O7-x-based second-generation coated conductors with different protective layers by Nd-laser irradiations
文献类型：期刊论文
| 作者 | Guan, Mingzhi ; Xin, Canjie; Wu, Wei; Yao, Qinggao; Ma, Lizhen
|
| 刊名 | AIP ADVANCES
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 10期号:3页码:10 |
| DOI | 10.1063/1.5136038 |
| 通讯作者 | Guan, Mingzhi(mzg615@impcas.ac.cn) |
| 英文摘要 | High-temperature superconductors (HTS) are materials that hold great promise for future particle-accelerator plants. YBa2Cu3O7-x-based (YBCO) second-generation coated conductor coils can produce the intense field needed for ion confinement. Such coils can act as a radiation resistance magnet when exposed to radiation, and therefore, it is essential to better understand irradiation responses and defect creation in YBCO superconductors. The influence of laser or ion irradiation on the electrical characteristics of HTS has been studied previously; however, most results remain ambiguous and inconsistent. Degradation of or incremental changes in the critical current of the HTS tap are currently only observed and explained via irradiation dose. The relation between irradiation defects and macro-multi-field responses has yet to be established for YBCO tapes, for magnet design and operation. In this study, YBCO (2 G HTS) taps with Ag, Cu-Ag, and Cu protective cap layers were selected as targets of Nd-laser irradiation, at varying power. Irradiation defects were formed in YBCO taps, and irradiation dose was monitored as a function of superconducting properties and mechanical behaviors. The critical current and its N-values eventually degrade under intense Nd-laser irradiation, and the mechanical behavior of YBCO tapes shows nonlinear features after irradiation. Scanning electron microscopy and x-ray energy-dispersive spectrometry were applied to investigate the micro-defect changes that occurred in the taps after each Nd-laser irradiation dose. Micro-structural observations showed that the protective layers were critical for radiation resistance in YBCO taps. Furthermore, the macro-stress dependence of the critical current field was measured before and after Nd-laser irradiation to establish the relationship with micro-defect morphology by Nd-laser irradiation. |
| WOS关键词 | ELECTRON-IRRADIATION ; ION IRRADIATION ; SUPERCONDUCTING PROPERTIES ; NEUTRON-IRRADIATION ; COLUMNAR DEFECTS ; THIN-FILMS ; DESIGN ; IMPROVEMENT ; FACILITY ; SYSTEM |
| 资助项目 | Youth Innovation Promotion Association CAS[2019404] ; CAS Light of West China Program ; National Natural Science Foundation of China[11575266] ; National Natural Science Foundation of China[11932008] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000519301500001 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | Youth Innovation Promotion Association CAS ; CAS Light of West China Program ; National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/140903]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Guan, Mingzhi |
| 作者单位 | Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guan, Mingzhi,Xin, Canjie,Wu, Wei,et al. Multi-field dependence responses and their micro-structure analysis in YBa2Cu3O7-x-based second-generation coated conductors with different protective layers by Nd-laser irradiations[J]. AIP ADVANCES,2020,10(3):10. |
| APA | Guan, Mingzhi,Xin, Canjie,Wu, Wei,Yao, Qinggao,&Ma, Lizhen.(2020).Multi-field dependence responses and their micro-structure analysis in YBa2Cu3O7-x-based second-generation coated conductors with different protective layers by Nd-laser irradiations.AIP ADVANCES,10(3),10. |
| MLA | Guan, Mingzhi,et al."Multi-field dependence responses and their micro-structure analysis in YBa2Cu3O7-x-based second-generation coated conductors with different protective layers by Nd-laser irradiations".AIP ADVANCES 10.3(2020):10. |
入库方式： OAI收割
来源：近代物理研究所
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