Fast synthesis and single crystal growth of Pb-free and Pb-doped Bi-2223 superconductors using alkali chlorides flux technique

S. Lee, Ayako Yamamoto, S. Tajima

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Here we report our recent results for the fast synthesis of Bi2Sr2Ca2Cu3O10+x phase in powder and single crystal forms using modified alkali chlorides flux technique. For many factors such as flux, crucibles materials, chemical and phase composition of the precursor, temperature and duration of heat treatment, evaporation rate of the flux, their effects on the formation and growth of 2223 have been studied. By optimization of these parameters, the single-phase samples of Pb-doped and Pb-free 2223 phase were obtained in the temperature range of 850-870°C and heat treatment for <15 h, that is much faster, compared with a solid-state reaction technique. The single crystals with the size of 0.5 mm were isolated and characterized using XRD, SEM/EDX, susceptibility and resistivity measurements. The effect of post-annealing in different atmospheres on the oxygen content and superconductivity of the samples was studied by TG and chemical analyses.

Original languageEnglish
Pages (from-to)341-344
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume357-360
Issue numberSUPPL. 2
DOIs
Publication statusPublished - 2001 Aug
Externally publishedYes

Fingerprint

Alkalies
Crystallization
Crystal growth
Superconducting materials
Chlorides
crystal growth
alkalies
chlorides
Single crystals
Fluxes
single crystals
heat treatment
synthesis
Heat treatment
crystals
evaporation rate
Crucibles
crucibles
Superconductivity
Solid state reactions

Keywords

  • Alkali chloride fluxes
  • Bi-2223
  • Rapid formation
  • Single crystal growth

ASJC Scopus subject areas

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

Cite this

Fast synthesis and single crystal growth of Pb-free and Pb-doped Bi-2223 superconductors using alkali chlorides flux technique. / Lee, S.; Yamamoto, Ayako; Tajima, S.

In: Physica C: Superconductivity and its Applications, Vol. 357-360, No. SUPPL. 2, 08.2001, p. 341-344.

Research output: Contribution to journalArticle

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