Synthesis, characterization and melt processing of Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz superconductors

M. A A Moussa, Muralidhar Miryala, M. Izumi, Masato Murakami

Research output: Contribution to journalArticle

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Abstract

Effects of a combined substitute of Yb and Nd on Y site on the superconducting properties of YBa2Cu3Oy have been studied. We synthesized Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz compound with x = 0.2, 0.4, 0.6, 0.8 and 1.0. Here, the ratio of Yb-Nd was fixed to be 9:1 for obtaining 123 phase without secondary phases. The melt processing thermal profiles for Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz with x = 0.2 and 0.4 and the addition of 40 mol% {Y1-x(Yb0.9Nd0.1) x}2BaCuO5 and 0.5 wt% Pt in air were determined onthe basis of the thermal analysis results. All samples showed a low grain growth rate, particularly for high x values, which may be partially ascribed to un-optimized thermal schedules. Although almost all the samples exhibited low Jc values, the sample with x = 0.2 exhibited Tc of 88.8 K and a relatively high Jc value of 16,000 A/cm 2 at 77 K for H//c-axis.

Original languageEnglish
Pages (from-to)1211-1214
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume469
Issue number15-20
DOIs
Publication statusPublished - 2009 Oct 15

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Grain growth
Thermoanalysis
Superconducting materials
synthesis
Processing
Air
schedules
thermal analysis
substitutes
air
profiles
Hot Temperature

Keywords

  • Bulk superconductor
  • Characterization
  • Melt process
  • Y(YbNd) BaCuO

ASJC Scopus subject areas

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

Cite this

Synthesis, characterization and melt processing of Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz superconductors. / Moussa, M. A A; Miryala, Muralidhar; Izumi, M.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 469, No. 15-20, 15.10.2009, p. 1211-1214.

Research output: Contribution to journalArticle

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