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High-Tc Ceramic Superconductors Through Oxidation of Mechanically Alloyed Y-Ba-Cu and Bi-Sr-Ca-Cu Powders

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Advances in Superconductivity

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Abstract

The high-Tc ceramic superconductors YBa2Cu3Oy and BiSrCaCu2Oy are synthesized through oxidation of master alloy powders produced by mechanical alloying. The effects of the milling time and subsequent oxidation conditions on the formation of the superconducting phase are studied. A homogeneous distribution of the constituent elements Y, Ba and Cu in YBa2Cu3 master alloy powders is achieved within the resolution of 0.1–0.3 μm after mechanical alloying for 36h in Ar gas atmosphere. Preliminary results for the BiSrCacu2Oy system are also reported.

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Authors and Affiliations

  1. Nippondenso Technical College, 1 Shinmichi, Takatana-cho, Anjo, Aichi, 446, Japan

    Shin-ichi Murasaki

  2. Department of Crystalline Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-01, Japan

    Satoru Taniguchi & Uichiro Mizutani

  3. Industrial Research Institute, Aichi Prefectural Government, Nishi-Shinwari, Hitotsugi-cho, Kariya, 448, Japan

    Motohiro Suganuma

  4. National Research Institute for Metals, Nakameguro, Meguro-ku, Tokyo, 153, Japan

    Yuh Yamada

Authors
  1. Shin-ichi Murasaki
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  2. Satoru Taniguchi
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  3. Uichiro Mizutani
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  4. Motohiro Suganuma
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  5. Yuh Yamada
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Editor information

Editors and Affiliations

  1. Department of Industrial Chemistry, The University of Tokyo, Tokyo, 113, Japan

    Koichi Kitazawa

  2. Department of Physics, Kyoto University, Kyoto, 606, Japan

    Takehiko Ishiguro

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© 1989 Springer Japan

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Murasaki, Si., Taniguchi, S., Mizutani, U., Suganuma, M., Yamada, Y. (1989). High-Tc Ceramic Superconductors Through Oxidation of Mechanically Alloyed Y-Ba-Cu and Bi-Sr-Ca-Cu Powders. In: Kitazawa, K., Ishiguro, T. (eds) Advances in Superconductivity. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68084-0_46

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  • DOI: https://doi.org/10.1007/978-4-431-68084-0_46

  • Publisher Name: Springer, Tokyo

  • Print ISBN: 978-4-431-68086-4

  • Online ISBN: 978-4-431-68084-0

  • eBook Packages: Springer Book Archive

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