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Publication Citation: YBa2Cu3O7-δ coated conductor cabling for low ac-loss and high-field magnet applications

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Author(s): Daniel C. van der Laan;
Title: YBa2Cu3O7-δ coated conductor cabling for low ac-loss and high-field magnet applications
Published: May 01, 2009
Abstract: 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.
Citation: Superconductor Science & Technology
Volume: 22
Issue: 065013
Pages: pp. 1 - 5
Keywords: Superconductivity;critical current;strain;YBCO coated conductors;superconducting cables
Research Areas: Superconductors
PDF version: PDF Document Click here to retrieve PDF version of paper (410KB)