Investigation of the formation of the Bi-2223 phase in multifilamentary Bi-2223/Ag tapes by in situ high temperature neutron diffraction

Author

Fahr, Torsten ; Trinks, Hans-Peter ; Schneider, Rainer ; Fischer, Claw

Author_Institution

Inst. for Solid State & Mater. Res., Dresden, Germany

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

3399

Lastpage

3402

Abstract

Results of in-situ diffraction experiments in the investigation of multifilamentary Bi-2223/Ag tape superconductors with neutron radiation are reported. The aim is to characterise the formation reaction of the Bi-2223 phase and the changes in the secondary phases assemblage under real reaction conditions without removing of the silver sheath of the composite. Furthermore, the mechanism of the evolution of a fibre texture of the superconducting phases Bi-2212 and Bi-2223 are discussed. Additionally, the results of the in-situ diffraction experiments will be related to the characterisation of the microstructure of quenched specimens done by scanning electron microscopy. Finally, a reaction model of the formation of the Bi-2223 phase within the composite conductor will be discussed

Keywords

bismuth compounds; calcium compounds; high-temperature superconductors; multifilamentary superconductors; neutron diffraction; phase diagrams; silver; strontium compounds; superconducting tapes; Bi-2223 phase; Bi₂Sr₂Ca₂Cu₃O₁₀-Ag; fibre texture; high temperature neutron diffraction; high temperature superconductor; microstructure; multifilamentary Bi-2223/Ag tapes; scanning electron microscopy; Assembly; Conductors; Diffraction; High temperature superconductors; Kinetic theory; Multifilamentary superconductors; Neutrons; Scanning electron microscopy; Silver; Solid state circuits;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919792

Filename

919792