High Upper Critical Field and Irreversibility Field in MgB2 Coated-Conductor Fibers

Abstract

We report on structural and superconducting properties of round MgB2 coated-conductor fibers deposited by hybrid physical-chemical vapor deposition on SiC fibers. The coating is polycrystalline and composed of elongated crystallites with dimensions less than 1 micron in length and 0.2 micron in width. The pure MgB2 fiber shows a zero-resistance Tc of 39.3 K. The carbon-alloyed fibers show a high upper critical field of 55 T at 1.5 K and a high irreversibility field of 40 T at 1.5 K. The result demonstrates great potential of MgB2 coated conductors for superconducting magnets.

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Document Details

Document Type
Technical Report
Publication Date
Dec 14, 2005
Accession Number
ADA631229

Entities

People

  • Alexej Pogrebnyakov
  • C. Mielke
  • Chang-Beom Eom
  • J. B. Betts
  • J. E. Giencke
  • Jiayu Chen
  • Joan Redwing
  • P. Orgiani
  • Qi Li
  • Qing-rong Feng
  • V. Ferrando
  • X. X. Xi

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Chemical Vapor Deposition
  • Coatings
  • Crystallites
  • Diffraction
  • Electron Microscopes
  • Films
  • Grain Boundaries
  • Magnetic Fields
  • Materials
  • Materials Science
  • Physics
  • Resistance
  • Scanning Electron Microscopes
  • Superconducting Magnets
  • Superconductors
  • Two Dimensional
  • Vapor Deposition

Fields of Study

  • Physics

Readers

  • Reinforced Composite Materials
  • Superconducting Magnet Technology
  • Thin Film Deposition Science.