Microstructural study of the Y-Ba-Cu-O system at high temperatures

Masato Murakami, Mitsuru Morita, Kenji Doi, Katsuyoshi Miyamoto, Hiroki Hamada

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

Phase relations for the Y-Ba-Cu-O system near 1:2:3 stoichiometric compositions at high temperatures have been studied through microstructural observation. It has been found that YBa2Cu3Ox decomposes into a Y2BaCuO5(211) plus liquid (a mixture of BaCuO2 and CuO) phase at around 1050°C and the 211 phase further decomposes into Y2O3 plus liquid at around 1200°C. Even at 1500°C Y2O3 seems to be stable. On cooling Y2O3 reacts with the liquid to produce the 211 phase by peritectic solidification. At around 1000°C the 211 phase reacts with the liquid to produce the YBa2Cu3Ox phase again by the peritectic reaction.

Original languageEnglish
Pages (from-to)399-401
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume28
Issue number3
Publication statusPublished - 1989 Mar
Externally publishedYes

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Liquids
liquids
Temperature
solidification
Solidification
Cooling
cooling
Chemical analysis

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Microstructural study of the Y-Ba-Cu-O system at high temperatures. / Murakami, Masato; Morita, Mitsuru; Doi, Kenji; Miyamoto, Katsuyoshi; Hamada, Hiroki.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 28, No. 3, 03.1989, p. 399-401.

Research output: Contribution to journalArticle

Murakami, Masato ; Morita, Mitsuru ; Doi, Kenji ; Miyamoto, Katsuyoshi ; Hamada, Hiroki. / Microstructural study of the Y-Ba-Cu-O system at high temperatures. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 1989 ; Vol. 28, No. 3. pp. 399-401.
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