B1 Other refereed article (e.g., editorial, letter, comment) in a scientific journal
Commercial compact fusion triggered REBCO tape industry: Pulsed laser deposition technology opportunities and challenges
Authors: Zhao, Yue; Wu, Yue; Goyal, Amit; Huhtinen, Hannu; Paturi, Petriina; Tsuchiya, Yuji
Publisher: Elsevier BV
Publication year: 2025
Journal: Superconductivity
Journal name in source: Superconductivity
Article number: 100188
Volume: 15
eISSN: 2772-8307
DOI: https://doi.org/10.1016/j.supcon.2025.100188
Web address : https://doi.org/10.1016/j.supcon.2025.100188
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/499784555
The rapid rise of commercial compact fusion devices has triggered fast-growing demand for high-temperature superconducting tapes, creating a major opportunity for the high-temperature superconducting (HTS) tape industry. Pulsed laser deposition (PLD) has been extensively applied for fabrication of heteroepitaxial HTS wires or tapes based on REBCO-type superconductor, also referred to as, coated conductors (CCs). A combination of multi-plume, multi-turn deposition technique and use of high-power excimer lasers has enabled and accelerated the industrialization of REBCO coated conductors. Currently, the annual production of top-tier PLD-based, HTS-wire manufacturers exceeds 3,000 km-12 mm, contributing to over half of the total global HTS wire production. PLD-REBCO tapes have demonstrated excellent in-field performance (Ic > 200 A-4 mm @20K, 20T, B//c) and competitive pricing (∼$20/m). PLD technology continues to evolve, demonstrating strong competitive advantages. However, challenges remain in further cost reduction, process stability, and increasing efficiency of raw material utilization. AI-based data mining and tackling emerging fundamental issues are seen as potential solutions to further improve stability and performance.
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Funding information in the publication:
Yue Zhao acknowledges financial support from the National Natural Science Foundation of China (Grant No. 52277027), the Scientific Research Program of Science and Technology commission of Shanghai Municipality (Grant No. 23511101500). Yue Wu acknowledges financial supported from the China Postdoctoral Science Foundation (Grant No. 2024M761969). Amit Goyal acknowledges financial support from Office of Naval Research (ONR), Grant No. N00014-21-1-2534. Hannu Huhtinen and Petriina Paturi acknowledge financial support from the Jenny and Antti Wihuri Foundation.
