Reactivity of RE-Ba-Cu-O superconductors with water

S. Nariki, Masato Murakami

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We studied the stability of Y-Ba-Cu-O and Gd-Ba-Cu-O against water. A variation in the superconducting and field trapping properties was measured before and after exposure to water. The YBa2Cu3O7 and GdBa2Cu3O7 powders were decomposed by the reaction with water in a short period. For sintered samples, grain boundaries were preferentially damaged with water. Melt-textured samples exhibited better corrosion resistance against water in that the deterioration mainly occurred at cracks. A comparison between melt-textured Gd-Ba-Cu-O samples with and without Ag addition showed that a reduction in the amount of cracking through Ag addition was effective in preventing the damage by water corrosion. The trapped field of melt-textured Gd-Ba-Cu-O with Ag addition did not deteriorate even after exposure to boiling water for 3 h.

Original languageEnglish
Pages (from-to)769-773
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume378-381
Issue numberPART 1
DOIs
Publication statusPublished - 2002 Oct 1
Externally publishedYes

Fingerprint

Superconducting materials
reactivity
Water
water
deterioration
corrosion resistance
boiling
Powders
Boiling liquids
Deterioration
Corrosion resistance
corrosion
Grain boundaries
cracks
grain boundaries
trapping
Corrosion
damage
Cracks

Keywords

  • Gd-Ba-Cu-O
  • Melt processing
  • Water corrosion
  • Y-Ba-Cu-O

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Reactivity of RE-Ba-Cu-O superconductors with water. / Nariki, S.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 378-381, No. PART 1, 01.10.2002, p. 769-773.

Research output: Contribution to journalArticle

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