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Development of 50-Meter RE-Ba-Cu-O Tapes With Critical Current Over 1750 A/12mm at 65 K, 0.25 T by Advanced-MOCVD

  • Mahesh Paidpilli
  • , Chirag Goel
  • , Siwei Chen
  • , Yi Li
  • , Rohit Jain
  • , Vinay Shyam
  • , Mahandar Oad
  • , Vamsi Yerraguravagari
  • , Eduard Galstyan
  • , Goran Majkic
  • , Robert M. Schmidt
  • , C. M. Rey
  • , T. H. Carnes
  • , Venkat Selvamanickam

Research output: Contribution to journalArticlepeer-review

Abstract

REBCO tapes have an immense potential in next-generation electric machines such as high-efficiency industrial motors, high-power wind turbine generators, and electric aircraft. We have constructed a pilot-scale advanced metal organic chemical vapor deposition (A-MOCVD) manufacturing tool to produce 50-meter-long REBCO tapes with film thickness over 4 μm in a single pass. The composition of these REBCO tapes with 5% Zr dopant has been optimized for high critical current in low magnetic fields at 65 K, specifically for use in an industrial motor. Several 50-meter-long tapes with 4+ μm thick films and 5% Zr have been fabricated with uniform critical current (Ic) over 1,750 A/12 mm at 65 K, 0.25 T. The critical current of all tapes has been examined over their entire length by scanning hall probe microscopy at 77 K, 0 T. The tapes were slit and copper plated to 4 mm wide strands to fabricate and test a rotor coil for a 500 HP motor.

Original languageEnglish (US)
Article number6600105
JournalIEEE Transactions on Applied Superconductivity
Volume33
Issue number5
DOIs
StatePublished - Aug 1 2023
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Keywords

  • Critical current
  • high-temperature superconductors
  • long tape
  • MOCVD

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