Formation of pores in melt-processed RE-Ba-Cu-O and the techniques to reduce pore density

Naomichi Sakai, D. Ishihara, Kazuo Inoue, Masato Murakami

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We have studied the formation of pores in melt-processed RE-Ba-Cu-O. The pores were partly formed due to the oxygen bubbles generated during the peritectic decomposition of RE123 via RE123 → RE211 + liquid + O2. When the sample was heated to the temperature high above the peritectic decomposition temperature, a large amount of oxygen gas was generated from the sample. The inert gas entrapment during melting also caused pore formation. The control of the composition, atmosphere and heating conditions was effective in reducing the amount of pores.

Original languageEnglish
Pages (from-to)698-701
Number of pages4
JournalSuperconductor Science and Technology
Volume15
Issue number5
DOIs
Publication statusPublished - 2002 May
Externally publishedYes

Fingerprint

Oxygen
Decomposition
porosity
Noble Gases
Inert gases
Melting
Gases
decomposition
Heating
Temperature
entrapment
Liquids
oxygen
Chemical analysis
rare gases
bubbles
melting
atmospheres
heating
liquids

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Formation of pores in melt-processed RE-Ba-Cu-O and the techniques to reduce pore density. / Sakai, Naomichi; Ishihara, D.; Inoue, Kazuo; Murakami, Masato.

In: Superconductor Science and Technology, Vol. 15, No. 5, 05.2002, p. 698-701.

Research output: Contribution to journalArticle

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