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Advances in Superconductivity II pp 99–102Cite as

Effect of Oxygen HIP on Superconducting Property of High-Tc Oxide Superconductors

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Abstract

Various synthesis conditions of Ln1-xCaxBa2Cu4O8 (Ln=Y,Ho, x=0-0.2) system and SmLa1-xSrxCuO4-z (x=0.05-0.5) system were investigated by using Oxygen Hot Isostatic Pressing. In SmLa1-xSrxCuO4-z system, the mixed phases of T’ and T- phase are formed at 950°C under oxygen partial pressure of 200 atm for 10 hours. The amount of T’-phase increases as the Sr concentration increases. The amount of Meissner signal of SmLa1-xSrxCuO4-z system takes the maximum value at x=0.25. The Ca-substituted single 1-2-4 phase can be synthesized at temperatures above 1000°C and oxygen partial pressure of 200 atm. Critical temperature of Ln1-xCaxBa2Cu4O8 (Ln=Y,Ho) increases as Ca-substitution increases up to x=0.1.

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References

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Authors and Affiliations

  1. Superconducting and Cryogenic Technology Center, Kobe Steel, Ltd., 5-5, Takatsukadai, 1-chome, 673-02, Nishi-ku, Kobe, Japan

    K. Shibutani, S. Hayashi, Y. Fukumoto, R. Ogawa & Y. Kawate

Authors
  1. K. Shibutani
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  2. S. Hayashi
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  3. Y. Fukumoto
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  4. R. Ogawa
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  5. Y. Kawate
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Editor information

Editors and Affiliations

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

    Takehiko Ishiguro

  2. Electrotechnical Laboratory, Tsukuba, 305, Japan

    Koji Kajimura

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© 1990 Springer Japan

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Shibutani, K., Hayashi, S., Fukumoto, Y., Ogawa, R., Kawate, Y. (1990). Effect of Oxygen HIP on Superconducting Property of High-Tc Oxide Superconductors. In: Ishiguro, T., Kajimura, K. (eds) Advances in Superconductivity II. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68117-5_18

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  • DOI: https://doi.org/10.1007/978-4-431-68117-5_18

  • Publisher Name: Springer, Tokyo

  • Print ISBN: 978-4-431-68119-9

  • Online ISBN: 978-4-431-68117-5

  • eBook Packages: Springer Book Archive

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