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

Published

May 1, 2009

Author(s)

Daniel C. van der Laan

Abstract

The electromechanical properties of YBa₂Cu₃O_7-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 YBa₂Cu₃O_7-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

Pub Type

Journals

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Keywords

Superconductivity, critical current, strain, YBCO coated conductors, superconducting cables

Citation

van, D. (2009), YBa₂Cu₃O_7-δ 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 April 25, 2024)