Effects of Y2BaCuO5 on the directional growth of YBa2Cu3Ox superconductor

Kwangsoo No, Dae Sung Yoon, Woo Suck Shin, Wonbaek Kim, Gunchoo Shim

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The effects of Y2BaCuO5 on the microstructure and superconducting properties of YBa2Cu3Ox samples, textured using the directional growth of Y2BaCuO5, BaCuO2 and CuO powder mixtures, were studied. Y2BaCuO5 moved downward as the sample passed up through the hot zone, and this downward movement affected the superconducting properties of the directionally grown samples. The critical temperature increased, and the resistance transition width decreased as the excess 211 content in the powder mixture increased up to a value, beyond which the temperature decreased and the width increased. The critical current densities of the directionally grown samples were scattered because of the presence of uncontrollable severe cracks perpendicular to the growth direction. As the hot-zone temperature increased, the critical current density of the directionally grown sample increased up to a maximum value (>6000 A cm-2) beyond which the critical current density decreased. Compared to data from other studies, the hot-zone temperature required to produce a maximum critical current density was lower.

Original languageEnglish
Pages (from-to)2345-2349
Number of pages5
JournalJournal of Materials Science
Volume29
Issue number9
DOIs
Publication statusPublished - 1994 Jan 1
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this