The effect of filament diameter on je in high filament count bi2212/ag round wire

William T. Nachtrab, Terence Wong, Xiaotao T. Liu, Justin Schwartz

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9 Scopus citations

Abstract

In this study, we investigated the effect of filament size on Je for high filament count Bi2212 round wire conductors partial melt processed with Tmax between 882 and 890° C in pure oxygen. The filament size that produced maximum Je was between 12 and 15 μm depending on conductor design and Tmax. When the filament size was below 12 μm the filaments were unstable during partial melt processing leading to a break-up in the structure of the filament array and low Je. This effect is attributed the formation of interconnects between filaments which leads to coarsening driven by a reduction in interfacial surface energy

Original languageEnglish (US)
Article number5153166
Pages (from-to)3061-3066
Number of pages6
JournalIEEE Transactions on Applied Superconductivity
Volume19
Issue number3
DOIs
StatePublished - Jun 2009

All Science Journal Classification (ASJC) codes

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

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