Superconducting Cu/Nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics
A very broad distribution of microstructural length scales spanning few nm- to the μm-scale has proven effective to achieve exceptional materials properties. Here, we fabricate a Cu/Nb two-phase composite made of a hierarchically layered structure by modifying the conventional accumulative roll bond...
| Main Authors: | , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Elsevier BV
2021
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| Online Access: | https://hdl.handle.net/1721.1/133048 |
| _version_ | 1826197969244782592 |
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| author | Gao, Rui Jin, Miaomiao Han, Fei Wang, Baoming Wang, Xianping Fang, Qianfeng Dong, Yanhao Sun, Cheng Shao, Lin Li, Mingda Li, Ju |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Gao, Rui Jin, Miaomiao Han, Fei Wang, Baoming Wang, Xianping Fang, Qianfeng Dong, Yanhao Sun, Cheng Shao, Lin Li, Mingda Li, Ju |
| author_sort | Gao, Rui |
| collection | MIT |
| description | A very broad distribution of microstructural length scales spanning few nm- to the μm-scale has proven effective to achieve exceptional materials properties. Here, we fabricate a Cu/Nb two-phase composite made of a hierarchically layered structure by modifying the conventional accumulative roll bonding (ARB) technique, where fresh Nb sheets are inserted and bonded during a repeated stacking and rolling process. This barcode-like multilayer with a designed hierarchical length scale distribution possesses densely distributed phase boundaries and rich interfacial structures. The composite demonstrates similar superconductivity characteristics as pure Nb, but is 3 × stronger, has theoretically better oxidation resistance, and retains considerable ductility. Under the helium irradiation environment, the unique interfacial structures featuring chemical intermixing zones (3-dimensional) are more immune to the formation of large helium clusters than atomically sharp interfaces (2-dimensional), screening them from radiation damage and improving their long-term mechanical integrity. This work signifies an effective strategy of constructing hierarchical laminates to achieve high-performance materials, which holds promise in fusion and fission energy applications. |
| first_indexed | 2024-09-23T10:56:37Z |
| format | Article |
| id | mit-1721.1/133048 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:56:37Z |
| publishDate | 2021 |
| publisher | Elsevier BV |
| record_format | dspace |
| spelling | mit-1721.1/1330482022-09-27T16:06:37Z Superconducting Cu/Nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics Gao, Rui Jin, Miaomiao Han, Fei Wang, Baoming Wang, Xianping Fang, Qianfeng Dong, Yanhao Sun, Cheng Shao, Lin Li, Mingda Li, Ju Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Massachusetts Institute of Technology. Department of Materials Science and Engineering A very broad distribution of microstructural length scales spanning few nm- to the μm-scale has proven effective to achieve exceptional materials properties. Here, we fabricate a Cu/Nb two-phase composite made of a hierarchically layered structure by modifying the conventional accumulative roll bonding (ARB) technique, where fresh Nb sheets are inserted and bonded during a repeated stacking and rolling process. This barcode-like multilayer with a designed hierarchical length scale distribution possesses densely distributed phase boundaries and rich interfacial structures. The composite demonstrates similar superconductivity characteristics as pure Nb, but is 3 × stronger, has theoretically better oxidation resistance, and retains considerable ductility. Under the helium irradiation environment, the unique interfacial structures featuring chemical intermixing zones (3-dimensional) are more immune to the formation of large helium clusters than atomically sharp interfaces (2-dimensional), screening them from radiation damage and improving their long-term mechanical integrity. This work signifies an effective strategy of constructing hierarchical laminates to achieve high-performance materials, which holds promise in fusion and fission energy applications. DOE Office of Nuclear Energy (Grant DE-NE0008827) 2021-10-19T15:44:08Z 2021-10-19T15:44:08Z 2020-09 2020-07 2021-10-19T14:16:25Z Article http://purl.org/eprint/type/JournalArticle 1359-6454 https://hdl.handle.net/1721.1/133048 Gao, Rui et al. Superconducting Cu/Nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics, Acta Materialia, Volume 197 (September 2020): 212-223. en http://dx.doi.org/10.1016/j.actamat.2020.07.031 Acta Materialia Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier BV Prof. Mingda Li |
| spellingShingle | Gao, Rui Jin, Miaomiao Han, Fei Wang, Baoming Wang, Xianping Fang, Qianfeng Dong, Yanhao Sun, Cheng Shao, Lin Li, Mingda Li, Ju Superconducting Cu/Nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics |
| title | Superconducting Cu/Nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics |
| title_full | Superconducting Cu/Nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics |
| title_fullStr | Superconducting Cu/Nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics |
| title_full_unstemmed | Superconducting Cu/Nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics |
| title_short | Superconducting Cu/Nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics |
| title_sort | superconducting cu nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics |
| url | https://hdl.handle.net/1721.1/133048 |
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