Effect of Ag addition on cold-seeded melt-growth of Gd-Ba-Cu-O superconductor using Nd123 seed crystal

S. Nariki, Naomichi Sakai, Kazuo Inoue, Masato Murakami

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We investigated the effect of Ag addition on cold-seeded melt-growth of Gd-Ba-Cu-O superconductors using Nd123 seed crystal. We found that a small addition of Ag enlarged the temperature window for stable single-grain growth, since the decomposition temperature of Gd123 decreased with Ag addition. However, Ag addition of more than 5 wt.% restricted the temperature window due to the melting of Nd123 seed crystal which reacted with Ag. The employment of a double layered precursor, which composed of two layers with and without Ag, solved the problem of the diffusion of Ag into the seed crystal. As a result, single grain Gd-Ba-Cu-O/Ag bulks could be obtained in a wide temperature window.

Original languageEnglish
Pages (from-to)468-472
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct
Externally publishedYes

Fingerprint

Superconducting materials
seeds
Crystals
crystals
Temperature
temperature
Grain growth
Melting
melting
Decomposition
decomposition

Keywords

  • Ag
  • Bulk
  • Cold-seeding
  • Gd-Ba-Cu-O
  • Melt processing

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Effect of Ag addition on cold-seeded melt-growth of Gd-Ba-Cu-O superconductor using Nd123 seed crystal. / Nariki, S.; Sakai, Naomichi; Inoue, Kazuo; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 392-396, No. PART 1, 10.2003, p. 468-472.

Research output: Contribution to journalArticle

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