Fabrication of large-grain bulk superconductors in microgravity environment

Naomichi Sakai, Kazuo Inoue, Akira Shisa, Hiromasa Hirata, Masato Murakami

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The experiment to fabricate large-grain RE-Ba-Cu-O (RE: Rare-Earth element) bulk superconductors in microgravity environment will be performed in the Unmanned Space Experiment Recovery System project. It is difficult to grow high-quality large-grain superconductors on the ground due to the chemical contamination from the substrate and the segregation of liquid phase. Such problems can be overcome by growing large RE-Ba-Cu-O bulk in microgravity environment, in which the bulk can be supported by a seed crystal alone during the crystal growth. In this paper, we describe the experiment plan, the materials composition, design of a temperature gradient furnace and the conditions for the crystal growth.

Original languageEnglish
Pages (from-to)35-43
Number of pages9
JournalActa Astronautica
Volume53
Issue number1
DOIs
Publication statusPublished - 2003 Jul
Externally publishedYes

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Microgravity
Superconducting materials
Crystal growth
Fabrication
Chemical contamination
Experiments
Rare earth elements
Thermal gradients
Furnaces
Recovery
Crystals
Liquids
Substrates
Chemical analysis

ASJC Scopus subject areas

  • Aerospace Engineering

Cite this

Fabrication of large-grain bulk superconductors in microgravity environment. / Sakai, Naomichi; Inoue, Kazuo; Shisa, Akira; Hirata, Hiromasa; Murakami, Masato.

In: Acta Astronautica, Vol. 53, No. 1, 07.2003, p. 35-43.

Research output: Contribution to journalArticle

Sakai, Naomichi ; Inoue, Kazuo ; Shisa, Akira ; Hirata, Hiromasa ; Murakami, Masato. / Fabrication of large-grain bulk superconductors in microgravity environment. In: Acta Astronautica. 2003 ; Vol. 53, No. 1. pp. 35-43.
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