Spark-Discharge Plasma as a Method to Produce Low AC Loss Multifilamentary (RE)Ba2Cu3 O7 Coated Conductors
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Mitchell-Williams, TB
Baskys, Algirdas https://orcid.org/0000-0002-1875-8106
Guo, Y
Hopkins, SC
Bangert, U
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.
Description
Keywords
silver, magnetic field measurement, high-temperature superconductors, resistance, discharges (electric), conductors, integrated circuits, materials processing, AC losses, coated conductors (CCs), high-temperature superconductors
Journal Title
IEEE Transactions on Applied Superconductivity
Conference Name
Journal ISSN
1051-8223
1558-2515
1558-2515
Volume Title
27
Publisher
IEEE
Publisher DOI
Sponsorship
EPSRC (1365115)