A study on oxide superconductor Bi-Sr-Ca-Cu-O system prepared by oxalate coprecipitation method

Yoshio Oka; Naoichi Yamamoto; Yoichi Tomii; Hitoshi Kitaguchi; Kiichi Oda; Jun Takada; Tsutomu Katamoto; Nanao Horiishi

doi:10.2497/jjspm.35.419

A study on oxide superconductor Bi-Sr-Ca-Cu-O system prepared by oxalate coprecipitation method

Yoshio Oka, Naoichi Yamamoto, Yoichi Tomii, Hitoshi Kitaguchi, Kiichi Oda, Jun Takada, Tsutomu Katamoto, Nanao Horiishi

Faculty of Engineering

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

2 Citations (Scopus)

Abstract

The oxalate coprecipitation method was applied to the preparation of a new high-Tc superconductor BiSrCaCu₂O_x and crystalline phases obtained by heat treatment were studied in connection with superconducting preperties. The pyrolysis of the coprecipitates was completed below 500°C and subsequent heat treatment above 800°C resulted in the formation of the layered structure characteristic to the superconducting phase. The particle shape was of thin flakes with the size of 10μm. The superconducting phase with T_c of 110K was formed by the heat treatment just below the melting point, which was enhanced in the melt - cooled sample.

Original language	English
Pages (from-to)	419-423
Number of pages	5
Journal	Journal of the Japan Society of Powder and Powder Metallurgy
Volume	35
Issue number	5
DOIs	https://doi.org/10.2497/jjspm.35.419
Publication status	Published - 1988

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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abstract = "The oxalate coprecipitation method was applied to the preparation of a new high-Tc superconductor BiSrCaCu2Ox and crystalline phases obtained by heat treatment were studied in connection with superconducting preperties. The pyrolysis of the coprecipitates was completed below 500°C and subsequent heat treatment above 800°C resulted in the formation of the layered structure characteristic to the superconducting phase. The particle shape was of thin flakes with the size of 10μm. The superconducting phase with Tc of 110K was formed by the heat treatment just below the melting point, which was enhanced in the melt - cooled sample.",

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T1 - A study on oxide superconductor Bi-Sr-Ca-Cu-O system prepared by oxalate coprecipitation method

AU - Oka, Yoshio

AU - Yamamoto, Naoichi

AU - Tomii, Yoichi

AU - Kitaguchi, Hitoshi

AU - Oda, Kiichi

AU - Takada, Jun

AU - Katamoto, Tsutomu

AU - Horiishi, Nanao

PY - 1988

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AB - The oxalate coprecipitation method was applied to the preparation of a new high-Tc superconductor BiSrCaCu2Ox and crystalline phases obtained by heat treatment were studied in connection with superconducting preperties. The pyrolysis of the coprecipitates was completed below 500°C and subsequent heat treatment above 800°C resulted in the formation of the layered structure characteristic to the superconducting phase. The particle shape was of thin flakes with the size of 10μm. The superconducting phase with Tc of 110K was formed by the heat treatment just below the melting point, which was enhanced in the melt - cooled sample.

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A study on oxide superconductor Bi-Sr-Ca-Cu-O system prepared by oxalate coprecipitation method

Abstract

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