Preparation of Bi-Pb-Sr-Ca-Cu-O high-tc superconductor from coprecipitated oxalate

Kiichi Oda; Hitoshi Kitaguchi; Jun Takada; Akiyoshi Osaka; Yoshinari Miura; Yasunori Ikeda; Mikio Takano; Yoshichika Bando; Naoichi Yamamoto; Yoshio Oka; Yoichi Tomii; Teruyoshi Unesaki; Yasuo Takeda; Hiromasa Mazaki

doi:10.2497/jjspm.35.424

Preparation of Bi-Pb-Sr-Ca-Cu-O high-tc superconductor from coprecipitated oxalate

Kiichi Oda, Hitoshi Kitaguchi, Jun Takada, Akiyoshi Osaka, Yoshinari Miura, Yasunori Ikeda, Mikio Takano, Yoshichika Bando, Naoichi Yamamoto, Yoshio Oka, Yoichi Tomii, Teruyoshi Unesaki, Yasuo Takeda, Hiromasa Mazaki

Faculty of Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Partial substitution of Pb for Bi in the Bi-Sr-Ca-Cu-O system has been found to increase sharply the volume fraction of the high-Tc phase when both the starting materials, coprecipitated oxalate being used in the present study, and the heating process are appropriate. The sharp powder X-ray diffraction pattern of the high-Tc phase was obtained from well-grown particles, 10∼20μm wide and 0.5μm thick typically. The electrical resistance dropped to zero at 107K within the experimental limit of 10^-6Ω. A large diamagnetic response in the ac susceptibility due to the Meissner effect was seen below 120K. The fraction of the high-Tc phase over the low-Tc phase was roughly estimated to be 9/1 in volume.

Original language	English
Pages (from-to)	424-427
Number of pages	4
Journal	Journal of the Japan Society of Powder and Powder Metallurgy
Volume	35
Issue number	5
DOIs	https://doi.org/10.2497/jjspm.35.424
Publication status	Published - 1988

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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Oda, K., Kitaguchi, H., Takada, J., Osaka, A., Miura, Y., Ikeda, Y., Takano, M., Bando, Y., Yamamoto, N., Oka, Y., Tomii, Y., Unesaki, T., Takeda, Y., & Mazaki, H. (1988). Preparation of Bi-Pb-Sr-Ca-Cu-O high-tc superconductor from coprecipitated oxalate. Journal of the Japan Society of Powder and Powder Metallurgy, 35(5), 424-427. https://doi.org/10.2497/jjspm.35.424

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title = "Preparation of Bi-Pb-Sr-Ca-Cu-O high-tc superconductor from coprecipitated oxalate",

abstract = "Partial substitution of Pb for Bi in the Bi-Sr-Ca-Cu-O system has been found to increase sharply the volume fraction of the high-Tc phase when both the starting materials, coprecipitated oxalate being used in the present study, and the heating process are appropriate. The sharp powder X-ray diffraction pattern of the high-Tc phase was obtained from well-grown particles, 10∼20μm wide and 0.5μm thick typically. The electrical resistance dropped to zero at 107K within the experimental limit of 10-6Ω. A large diamagnetic response in the ac susceptibility due to the Meissner effect was seen below 120K. The fraction of the high-Tc phase over the low-Tc phase was roughly estimated to be 9/1 in volume.",

author = "Kiichi Oda and Hitoshi Kitaguchi and Jun Takada and Akiyoshi Osaka and Yoshinari Miura and Yasunori Ikeda and Mikio Takano and Yoshichika Bando and Naoichi Yamamoto and Yoshio Oka and Yoichi Tomii and Teruyoshi Unesaki and Yasuo Takeda and Hiromasa Mazaki",

year = "1988",

doi = "10.2497/jjspm.35.424",

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T1 - Preparation of Bi-Pb-Sr-Ca-Cu-O high-tc superconductor from coprecipitated oxalate

AU - Oda, Kiichi

AU - Kitaguchi, Hitoshi

AU - Takada, Jun

AU - Osaka, Akiyoshi

AU - Miura, Yoshinari

AU - Ikeda, Yasunori

AU - Takano, Mikio

AU - Bando, Yoshichika

AU - Yamamoto, Naoichi

AU - Oka, Yoshio

AU - Tomii, Yoichi

AU - Unesaki, Teruyoshi

AU - Takeda, Yasuo

AU - Mazaki, Hiromasa

PY - 1988

Y1 - 1988

N2 - Partial substitution of Pb for Bi in the Bi-Sr-Ca-Cu-O system has been found to increase sharply the volume fraction of the high-Tc phase when both the starting materials, coprecipitated oxalate being used in the present study, and the heating process are appropriate. The sharp powder X-ray diffraction pattern of the high-Tc phase was obtained from well-grown particles, 10∼20μm wide and 0.5μm thick typically. The electrical resistance dropped to zero at 107K within the experimental limit of 10-6Ω. A large diamagnetic response in the ac susceptibility due to the Meissner effect was seen below 120K. The fraction of the high-Tc phase over the low-Tc phase was roughly estimated to be 9/1 in volume.

AB - Partial substitution of Pb for Bi in the Bi-Sr-Ca-Cu-O system has been found to increase sharply the volume fraction of the high-Tc phase when both the starting materials, coprecipitated oxalate being used in the present study, and the heating process are appropriate. The sharp powder X-ray diffraction pattern of the high-Tc phase was obtained from well-grown particles, 10∼20μm wide and 0.5μm thick typically. The electrical resistance dropped to zero at 107K within the experimental limit of 10-6Ω. A large diamagnetic response in the ac susceptibility due to the Meissner effect was seen below 120K. The fraction of the high-Tc phase over the low-Tc phase was roughly estimated to be 9/1 in volume.

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Preparation of Bi-Pb-Sr-Ca-Cu-O high-tc superconductor from coprecipitated oxalate

Abstract

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