Development and large volume production of extremely high current density YBa 2 Cu 3 O 7 superconducting wires for fusion.

Autor: Molodyk A; S-Innovations, Moscow, Russia. a.molodyk@superox.ru.; SuperOx, Moscow, Russia. a.molodyk@superox.ru., Samoilenkov S; S-Innovations, Moscow, Russia.; SuperOx, Moscow, Russia., Markelov A; S-Innovations, Moscow, Russia., Degtyarenko P; SuperOx, Moscow, Russia.; Joint Institute for High Temperature, Russian Academy of Sciences, Moscow, Russia., Lee S; SuperOx Japan, Kanagawa, Japan., Petrykin V; SuperOx Japan, Kanagawa, Japan., Gaifullin M; SuperOx Japan, Kanagawa, Japan., Mankevich A; S-Innovations, Moscow, Russia., Vavilov A; S-Innovations, Moscow, Russia.; SuperOx, Moscow, Russia.; SuperOx Japan, Kanagawa, Japan., Sorbom B; Commonwealth Fusion Systems, Cambridge, MA, USA., Cheng J; Commonwealth Fusion Systems, Cambridge, MA, USA., Garberg S; Commonwealth Fusion Systems, Cambridge, MA, USA., Kesler L; Commonwealth Fusion Systems, Cambridge, MA, USA., Hartwig Z; Massachusetts Institute of Technology, Cambridge, MA, USA., Gavrilkin S; P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow, Russia., Tsvetkov A; P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow, Russia., Okada T; Institute for Materials Research, Tohoku University, Sendai, Japan., Awaji S; Institute for Materials Research, Tohoku University, Sendai, Japan., Abraimov D; National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USA., Francis A; National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USA., Bradford G; National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USA., Larbalestier D; National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USA., Senatore C; University of Geneva, Geneva, Switzerland., Bonura M; University of Geneva, Geneva, Switzerland., Pantoja AE; Robinson Research Institute, Victoria University of Wellington, Wellington, New Zealand., Wimbush SC; Robinson Research Institute, Victoria University of Wellington, Wellington, New Zealand., Strickland NM; Robinson Research Institute, Victoria University of Wellington, Wellington, New Zealand., Vasiliev A; National Research Centre 'Kurchatov Institute', Moscow, Russia.; Shubnikov Institute of Crystallography, Russian Academy of Sciences, Moscow, Russia.; Moscow Institute of Physics and Technology, Dolgoprudny, Russia.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2021 Jan 22; Vol. 11 (1), pp. 2084. Date of Electronic Publication: 2021 Jan 22.
DOI: 10.1038/s41598-021-81559-z
Abstrakt: The fusion power density produced in a tokamak is proportional to its magnetic field strength to the fourth power. Second-generation high temperature superconductor (2G HTS) wires demonstrate remarkable engineering current density (averaged over the full wire), J E , at very high magnetic fields, driving progress in fusion and other applications. The key challenge for HTS wires has been to offer an acceptable combination of high and consistent superconducting performance in high magnetic fields, high volume supply, and low price. Here we report a very high and reproducible J E in practical HTS wires based on a simple YBa 2 Cu 3 O 7 (YBCO) superconductor formulation with Y 2 O 3 nanoparticles, which have been delivered in just nine months to a commercial fusion customer in the largest-volume order the HTS industry has seen to date. We demonstrate a novel YBCO superconductor formulation without the c-axis correlated nano-columnar defects that are widely believed to be prerequisite for high in-field performance. The simplicity of this new formulation allows robust and scalable manufacturing, providing, for the first time, large volumes of consistently high performance wire, and the economies of scale necessary to lower HTS wire prices to a level acceptable for fusion and ultimately for the widespread commercial adoption of HTS.
Databáze: MEDLINE