Статья

Development and large volume production of extremely high current density YBa2Cu3O7 superconducting wires for fusion

Alexander MolodykS-Innovations, Moscow, Russia. [email protected]S. V. SamoilenkovAnton V. MarkelovPavel DegtyarenkoJoint Institute for High Temperature, Russian Academy of Sciences, Moscow, RussiaS. LeeValery PetrykinM. B. GaifullinA. MankevichA.P. VavilovBrandon SorbomCommonwealth Fusion Systems, Cambridge, MA, USAJL ChengCommonwealth Fusion Systems, Cambridge, MA, USASarah GarbergCommonwealth Fusion Systems, Cambridge, MA, USAL.A. KeslerCommonwealth Fusion Systems, Cambridge, MA, USAZach HartwigMassachusetts Institute of Technology, Cambridge, MA, USAS. Yu. GavrilkinP.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow, RussiaA. Yu. TsvetkovP.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow, RussiaTatsunori OkadaInstitute for Materials Research, Tohoku University, Sendai, JapanSatoshi AwajiInstitute for Materials Research, Tohoku University, Sendai, JapanDmytro AbraimovNational High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USAAshleigh FrancisNational High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USAGriffin BradfordNational High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USAD. C. LarbalestierNational High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USACarmine SenatoreUniversity of Geneva, Geneva, SwitzerlandMarco BonuraUniversity of Geneva, Geneva, SwitzerlandAndrés PantojaRobinson Research Institute, Victoria University of Wellington, Wellington, New ZealandStuart C. WimbushRobinson Research Institute, Victoria University of Wellington, Wellington, New ZealandNick StricklandRobinson Research Institute, Victoria University of Wellington, Wellington, New ZealandA. L. VasilievMoscow Institute of Physics and Technology, Dolgoprudny, Russia

2021en

ABI

Аннотация

Abstract 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.

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Идентификаторы

DOI: 10.1038/s41598-021-81559-z

Цитирования и источники

Цитирований: 2Использованных источников: 0

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