Spark-Discharge Plasma as a Method to Produce Low AC Loss Multifilamentary (RE)Ba2Cu3O7 Coated Conductors

Tom B. Mitchell-Williams; Algirdas Baskys; Yina Guo; Simon C. Hopkins; Ursel Bangert; Alexander Molodyk; Valery Petrykin; Fedor Gömöry; Lubomir Frolek; Bartek A. Glowacki

doi:10.1109/TASC.2017.2651584

Spark-Discharge Plasma as a Method to Produce Low AC Loss Multifilamentary (RE)Ba₂Cu₃O₇ Coated Conductors

Tom B. Mitchell-Williams, Algirdas Baskys, Yina Guo, Simon C. Hopkins, Ursel Bangert, Alexander Molodyk, Valery Petrykin, Fedor Gömöry, Lubomir Frolek, Bartek A. Glowacki

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Abstract

If coated conductors are to be used in large-scale ac applications such as motors and generators, energy losses must be minimised. Hysteretic ac losses can be reduced by dividing the coated conductor into filaments. In this study, a new method for producing filamentary coated conductors is presented. An electrical spark discharge was used to selectively degrade regions of superconducting tape. The robust, noncontact and scalable method was used to striate tapes into four filaments. The filamentary samples had lower ac losses than nonstriated tapes with less than a 7% reduction in current carrying capacity.

Original language	English
Article number	7814253
Pages (from-to)	-
Journal	IEEE Transactions on Applied Superconductivity
Volume	27
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2017.2651584
Publication status	Published - Jun 2017

Keywords

AC losses
coated conductors (CCs)
high-temperature superconductors
materials processing

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Mitchell-Williams, T. B., Baskys, A., Guo, Y., Hopkins, S. C., Bangert, U., Molodyk, A., Petrykin, V., Gömöry, F., Frolek, L., & Glowacki, B. A. (2017). Spark-Discharge Plasma as a Method to Produce Low AC Loss Multifilamentary (RE)Ba₂Cu₃O₇ Coated Conductors. IEEE Transactions on Applied Superconductivity, 27(4), -. Article 7814253. https://doi.org/10.1109/TASC.2017.2651584

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AU - Molodyk, Alexander

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Spark-Discharge Plasma as a Method to Produce Low AC Loss Multifilamentary (RE)Ba₂Cu₃O₇ Coated Conductors

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