Phase diagram studies of the BiO1.5{single bond}PbO{single bond}SrO{single bond}CaO{single bond}CuO system and the formation process of the "2223 (high-Tc)" phase

Y. Ikeda, H. Ito, S. Shimomura, Z. Hiroi, M. Takano, Y. Bando, J. Takada, K. Oda, H. Kitaguchi, Y. Miura, Y. Takeda, T. Takada

Research output: Contribution to journalArticle

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Abstract

The phase relation in the BiO1.5{single bond}PbO{single bond}SrO{single bond}CaO{single bond}CuO system and the formation process of the "2223" phase for a nominal composition Bi0.9Pb0.2SrCaCu1.6Oz were studied. At 825°C a small amount of liquid phase was formed that triggered the 2223 phase formation. Solid phases formed below the partial melting temperature were identified, and the melting points of various combinations of these were measured. The lowest liquid formation temperature was obtained at 825°C from a combination of the "2201" phase and Ca2PbO4. The liquid hardly wetted 2223 but did the "2201" and the "2212" phases very well. Reaction with the liquid has been concluded to convert 2212 phase into 2223.

Original languageEnglish
Pages (from-to)18-21
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume190
Issue number1-2
DOIs
Publication statusPublished - Dec 2 1991

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Phase diagrams
phase diagrams
Liquids
liquids
Melting point
melting points
solid phases
liquid phases
melting
temperature
single bond
Chemical analysis
Temperature

ASJC Scopus subject areas

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

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Phase diagram studies of the BiO1.5{single bond}PbO{single bond}SrO{single bond}CaO{single bond}CuO system and the formation process of the "2223 (high-Tc)" phase. / Ikeda, Y.; Ito, H.; Shimomura, S.; Hiroi, Z.; Takano, M.; Bando, Y.; Takada, J.; Oda, K.; Kitaguchi, H.; Miura, Y.; Takeda, Y.; Takada, T.

In: Physica C: Superconductivity and its Applications, Vol. 190, No. 1-2, 02.12.1991, p. 18-21.

Research output: Contribution to journalArticle

Ikeda, Y. ; Ito, H. ; Shimomura, S. ; Hiroi, Z. ; Takano, M. ; Bando, Y. ; Takada, J. ; Oda, K. ; Kitaguchi, H. ; Miura, Y. ; Takeda, Y. ; Takada, T. / Phase diagram studies of the BiO1.5{single bond}PbO{single bond}SrO{single bond}CaO{single bond}CuO system and the formation process of the "2223 (high-Tc)" phase. In: Physica C: Superconductivity and its Applications. 1991 ; Vol. 190, No. 1-2. pp. 18-21.
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abstract = "The phase relation in the BiO1.5{single bond}PbO{single bond}SrO{single bond}CaO{single bond}CuO system and the formation process of the {"}2223{"} phase for a nominal composition Bi0.9Pb0.2SrCaCu1.6Oz were studied. At 825°C a small amount of liquid phase was formed that triggered the 2223 phase formation. Solid phases formed below the partial melting temperature were identified, and the melting points of various combinations of these were measured. The lowest liquid formation temperature was obtained at 825°C from a combination of the {"}2201{"} phase and Ca2PbO4. The liquid hardly wetted 2223 but did the {"}2201{"} and the {"}2212{"} phases very well. Reaction with the liquid has been concluded to convert 2212 phase into 2223.",
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AU - Ikeda, Y.

AU - Ito, H.

AU - Shimomura, S.

AU - Hiroi, Z.

AU - Takano, M.

AU - Bando, Y.

AU - Takada, J.

AU - Oda, K.

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AU - Takeda, Y.

AU - Takada, T.

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