Microstructural Study of the Y-Ba-Cu-O System at High Temperatures
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概要
- 論文の詳細を見る
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 YBa_2Cu_3O_x decomposes into a Y_2BaCuO_5(211) plus liquid (a mixture of BaCuO_2 and CuO) phase at around 1050℃ and the 211 phase further decomposes into Y_2O_3 plus liquid at around 1200℃. Even at 1500℃ Y_2O_3 seems to be stable. On cooling Y_2O_3 reacts with the liquid to produce the 211 phase by peritectic solidification. At around 1000℃ the 211 phase reacts with the liquid to produce the YBa_2Cu_3O_x phase again by the peritectic reaction.
- 社団法人応用物理学会の論文
- 1989-03-20
著者
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Hamada Hiroki
R & D Laboratories-i Nippon Steel Corporation
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Hamada Hiroki
R & D Laboratory, Analysis Research Laboratory, Nippon Steel Corporation
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Morita Mitsuru
R & D Laboratories-I, Nippon Steel Corporation
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Miyamoto Katsuyoshi
R & D Laboratories-I, Nippon Steel Corporation
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Miyamoto K
Research & Development Center Stanley Electric Co. Ltd.
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MURAKAMI Masato
R & D Laboratories-I, Nippon Steel Corporation
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DOI Kenji
R & D Laboratories-I, Nippon Steel Corporation
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Doi Kenji
R & D Laboratories-i Nippon Steel Corporation
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