Normal Zone Propagation Velocity and Minimum Quench Energy of Stainless Steel Double-Layered Superconducting Wires Under External Magnetic Fields

  • Zhaoyang Zhong
  • Xiuchang Zhang
  • H. S. Ruiz
  • Boyang ShenEmail author
  • T. A. CoombsEmail author
Original Paper


A comprehensive study of the quench properties of single laminated wires having a double-layered superconducting structure is presented. In particular, we have focused on the influence of the angle and intensity of an external magnetic field perpendicular to direction of the applied current on the minimum quench energy (MQE) and normal zone propagation velocity (NZPV) values. We conclude that strong changes on the NZPV are mainly determined by the intensity of the applied current, while the orientation and magnitude of the applied field have a less but not negligible impact on the resulting NZPV. The quench parameters are also reported for the case when the applied current is considered as a constant parameter in which case the MQE has been found to reach a maximum value when the in-field critical current is the largest.


Normal zone propagation velocity Minimum quench energy Double-layered superconducting tape 



The experiment was executed with the help from the Electrical Engineering Division, Department of Engineering, University of Cambridge. Authors would like to thank the members of staff for their important help.

Funding Information

This work was supported by the EPSRC under Grant NMZF/064.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Electrical Engineering Division, Department of EngineeringUniversity of CambridgeCambridgeUK
  2. 2.Department of EngineeringUniversity of LeicesterLeicesterUK

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