YBa2Cu3O7-δ coated conductor cabling for low ac-loss and high-field magnet applications
Daniel C. van der Laan
The electromechanical properties of YBa2Cu3O7-δ coated conductors under high axial compressive strain are measured; they show no irreversible degradation in critical current up to -2 % strain. The high degree of elasticity of the ceramic layers in these conductors is beneficial when used in high-field applications, but has not been fully exploited. The results presented here lead to the introduction of a new method of producing YBa2Cu3O7-δ coated conductor cabling for use in low ac-loss and high-field magnet applications, where coated conductors are wound around a former with a relatively small diameter. This concept allows for full transposition of the conductors, a high cable critical current, low inductance, and a relatively high engineering current density. The feasibility of the concept is demonstrated by constructing several prototype cables and by comparing the cable critical current to that of a straight sample under axial compression.
YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> coated conductor cabling for low ac-loss and high-field magnet applications, Superconductor Science & Technology, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902009
(Accessed December 10, 2023)