Synthesis and formation of TlSr1212 superconductors from coprecipitated oxalate precursors

F. Md Salleh, A. K. Yahya, H. Imad, Mohammad Hafizuddin Jumali

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

TlSr1212 superconductors were synthesized by solid-state reaction using Tl-containing precursor powder prepared by coprecipitation of metal acetates with stoichiometric ratio based on Tl0.8Bi0.2Sr 2Ca0.8Y0.2Cu2O 7±δ composition. The samples were sintered at temperatures between 870 and 980 °C for different durations. XRD patterns for samples sintered at 870 °C showed formation of dominant 1212 phase in addition to minor 1201 phase and SrCO3 impurity. At this sintering temperature, the best superconducting behavior with Tc zero of 94 K was observed for the sample sintered for 60 min. SEM investigations on the sample revealed elongated grains with a slight directional grain alignment. Effect of using metal acetates with a slightly different starting stoichiometric ratio of Tl0.96Bi0.2Sr1.6Ca 0.8Y0.2Cu2O7±δ was also investigated.

Original languageEnglish
Pages (from-to)319-324
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume426-431
Issue numberI
DOIs
Publication statusPublished - 1 Oct 2005

Fingerprint

Oxalates
oxalates
Superconducting materials
Acetates
Metals
synthesis
Coprecipitation
Solid state reactions
Powders
acetates
Sintering
Impurities
Temperature
Scanning electron microscopy
Chemical analysis
metals
sintering
alignment
solid state
impurities

Keywords

  • Oxalates coprecipitation
  • Superconductor
  • Tl1212

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Synthesis and formation of TlSr1212 superconductors from coprecipitated oxalate precursors. / Salleh, F. Md; Yahya, A. K.; Imad, H.; Jumali, Mohammad Hafizuddin.

In: Physica C: Superconductivity and its Applications, Vol. 426-431, No. I, 01.10.2005, p. 319-324.

Research output: Contribution to journalArticle

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