Liquid-phase-assisted synthesis of single-thallium-layer superconductors

Y. F. Li, Z. Z. Sheng, Nan Chen, S. E. Dorris, Michael T. Lanagan, K. C. Goretta

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

TlBa2Ca2Cu3Ox (Tl-1223) powder was synthesized in O2 from a mixture of Tl2O3 and Ba2Ca2Cu3Ox. The peritectic melting point of Tl-1223 in O2 is 905°C. It was found that the maximum phase conversion to the Tl-1223 phase occurred at 895-900°C. A small concentration of liquid was present at that temperature. Because of the rapid kinetics of Tl-1223 formation, CaO and BaCuO2 phases became isolated from the Tl2O3 and thus remained in the final microstructure. In samples heated at 895°C, the CaO and BaCuO2 proved to be sufficiently small to act as flux-pinning sites.

Original languageEnglish (US)
Pages (from-to)1057-1064
Number of pages8
JournalMaterials Research Bulletin
Volume29
Issue number10
DOIs
StatePublished - Jan 1 1994

Fingerprint

Flux pinning
Thallium
flux pinning
thallium
Powders
Superconducting materials
melting points
Melting point
liquid phases
microstructure
Microstructure
Kinetics
kinetics
Liquids
synthesis
liquids
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Li, Y. F. ; Sheng, Z. Z. ; Chen, Nan ; Dorris, S. E. ; Lanagan, Michael T. ; Goretta, K. C. / Liquid-phase-assisted synthesis of single-thallium-layer superconductors. In: Materials Research Bulletin. 1994 ; Vol. 29, No. 10. pp. 1057-1064.
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Liquid-phase-assisted synthesis of single-thallium-layer superconductors. / Li, Y. F.; Sheng, Z. Z.; Chen, Nan; Dorris, S. E.; Lanagan, Michael T.; Goretta, K. C.

In: Materials Research Bulletin, Vol. 29, No. 10, 01.01.1994, p. 1057-1064.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Liquid-phase-assisted synthesis of single-thallium-layer superconductors

AU - Li, Y. F.

AU - Sheng, Z. Z.

AU - Chen, Nan

AU - Dorris, S. E.

AU - Lanagan, Michael T.

AU - Goretta, K. C.

PY - 1994/1/1

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AB - TlBa2Ca2Cu3Ox (Tl-1223) powder was synthesized in O2 from a mixture of Tl2O3 and Ba2Ca2Cu3Ox. The peritectic melting point of Tl-1223 in O2 is 905°C. It was found that the maximum phase conversion to the Tl-1223 phase occurred at 895-900°C. A small concentration of liquid was present at that temperature. Because of the rapid kinetics of Tl-1223 formation, CaO and BaCuO2 phases became isolated from the Tl2O3 and thus remained in the final microstructure. In samples heated at 895°C, the CaO and BaCuO2 proved to be sufficiently small to act as flux-pinning sites.

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