@article{7723c74e41e44c4199fef40d2cbfb53c,
title = "Superconducting Cu/Nb nanolaminate by coded accumulative roll bonding and its helium damage characteristics",
abstract = "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.",
author = "Rui Gao and Miaomiao Jin and Fei Han and Baoming Wang and Xianping Wang and Qianfeng Fang and Yanhao Dong and Cheng Sun and Lin Shao and Mingda Li and Ju Li",
note = "Funding Information: We thank Prof. Penghui Cao for discussions regarding MD simulation. We thank Dr. Wayne Kinnison and Dr. Miltiadis Kennas for performing the helium ion irradiation experiments at Texas A&M University. We also thank Prof. Michael Short for reviewing the manuscript. This work was supported by the National Natural Science Foundation of China (Grant Nos. 51771181 , 51801194 , 51971212 , 51971213 , U1967211 ), and the Anhui Provincial Natural Science Foundation (Grant No. 1908085QA42 ). We acknowledge support from the US DOE Office of Nuclear Energy's NEUP Program under Grant No. DE-NE0008827 . This research made use of Idaho National Laboratory computing resources which are supported by the Office of Nuclear Energy of the U.S. Department of Energy and the Nuclear Science User Facilities under Contract No. DE-AC07-05ID14517. Funding Information: We thank Prof. Penghui Cao for discussions regarding MD simulation. We thank Dr. Wayne Kinnison and Dr. Miltiadis Kennas for performing the helium ion irradiation experiments at Texas A&M University. We also thank Prof. Michael Short for reviewing the manuscript. This work was supported by the National Natural Science Foundation of China (Grant Nos. 51771181, 51801194, 51971212, 51971213, U1967211), and the Anhui Provincial Natural Science Foundation (Grant No. 1908085QA42). We acknowledge support from the US DOE Office of Nuclear Energy's NEUP Program under Grant No. DE-NE0008827. This research made use of Idaho National Laboratory computing resources which are supported by the Office of Nuclear Energy of the U.S. Department of Energy and the Nuclear Science User Facilities under Contract No. DE-AC07-05ID14517. Publisher Copyright: {\textcopyright} 2020",
year = "2020",
month = sep,
day = "15",
doi = "10.1016/j.actamat.2020.07.031",
language = "English (US)",
volume = "197",
pages = "212--223",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier Limited",
}