Improving YBCO Coated Conductors for Applications (Postprint)

Abstract

Superconducting power devices made of high temperature superconductors (HTS) can enable megawatt-class power systems which are lighter in weight and smaller in size than their conventional counterparts. The YBCO coated conductor is expected to be the premiere HTS conductor in making these systems. With advances in YBCO deposition techniques and the establishment of reel-toreel processing, new research should address enhancement of the YBCO coated conductor's performance. These improvements in the YBCO conductor must include maintaining high critical current densities in fields of a few tesla and minimizing ac losses. This paper first discusses a current sharing scheme in the multifilamentary YBCO conductor to circumvent filamentary breakage. Also, a method for providing magnetic flux pinning to increase the current capacity of the YBCO conductor is outlined using minute additions of rare earth dopants.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2012
Accession Number
ADA560803

Entities

People

  • B. C. Harrison
  • George A. Levin
  • J. W. Kell
  • M. D. Sumption
  • Paul N. Barnes

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Armatures
  • Continuous Processing
  • Current Density
  • Energy
  • Energy Conversion
  • Engineering
  • Magnetic Fields
  • Magnetic Flux
  • Magnetic Properties
  • Materials
  • Military Research
  • Physical Properties
  • Superconductors
  • United States

Fields of Study

  • Physics

Readers

  • Superconducting Magnet Technology
  • Systems Analysis and Design