Ｂｉ‐２２２３相におけるＰｂ化合物の析出・再固溶におよぼす雰囲気の影響

• 草野 圭弘

  岡山大学工学部

• 難波 徳郎

  岡山大学工学部

• 高田 潤

  岡山大学工学部

• 池田 靖訓

  京都大学化学研究所

• 高野 幹夫

  京都大学化学研究所

書誌事項

タイトル別名

• Effect of Heating Atomosphere on Segregation and Dissolution of the Pb-compound in the Bi-2223 Phase.
• Bi 2223ソウ ニ オケル Pb カゴウブツ ノ セキシュツ サイ コヨウ

抄録

Thermal behavior of the Bi-2223 phase in the Bi, Pb-Sr-Ca-Cu-O system, especially segregation and dissolution reaction of the "3321" phase which was identified as Sr_2.5Bi_0.5Pb₃Ca₂CuO₂, has been studied by XRD, SQUID and resistivity measurements. On annealing below 830°C in air, the "3321" phase precipitated from the 2223 crystals. When the 2223 phase was annealed at 750°C in O₂stream, the precipitation of the "3321 " phase increased. On annealing at 750°C in Ar stream, however, no precipitation of the "3321" phase was detected. By reheateing at 850°C even for 1min, the "3321" phase was almost dissolved into the mother 2223 crystals. When the 2223 phase was reheated at 750°C in Ar stream after annealing at 750°C in air, the "3321 " phase disappeared. On the contrary, the "3321" phase was stable on reheating at 870°C in O₂ stream. Therefore, it seems that the "3321" and the 2223 phase coexist in epuilibrium in a high oxygen partial pressure.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 41 (4), 388-391, 1994

  一般社団法人 粉体粉末冶金協会

キーワード

• Materials Chemistry
• Metals and Alloys
• Industrial and Manufacturing Engineering
• Mechanical Engineering

詳細情報

• CRID: 1390282681285757952
• NII論文ID: 130000819544
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.41.388
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 3878302
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3878302
• 本文言語コード: ja
• データソース種別:
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  • NDL
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  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可