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

S. Nariki; M. Murakami

doi:10.1016/S0921-4534(02)01540-X

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

S. Nariki, M. Murakami

Research output: Contribution to journal › Article › peer-review

3 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 language	English
Pages (from-to)	769-773
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	378-381
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(02)01540-X
Publication status	Published - 2002 Oct 1
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(02)01540-X

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title = "Reactivity of RE-Ba-Cu-O superconductors with water",

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.",

keywords = "Gd-Ba-Cu-O, Melt processing, Water corrosion, Y-Ba-Cu-O",

author = "S. Nariki and M. Murakami",

note = "Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2002",

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doi = "10.1016/S0921-4534(02)01540-X",

language = "English",

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T1 - Reactivity of RE-Ba-Cu-O superconductors with water

AU - Nariki, S.

AU - Murakami, M.

N1 - Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - 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.

AB - 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.

KW - Gd-Ba-Cu-O

KW - Melt processing

KW - Water corrosion

KW - Y-Ba-Cu-O

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U2 - 10.1016/S0921-4534(02)01540-X

DO - 10.1016/S0921-4534(02)01540-X

M3 - Article

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SN - 0921-4534

VL - 378-381

SP - 769

EP - 773

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 1

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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