Effect of Ba-addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System (IV)

Yoshihiro Kusano; Kazuhiro Yamaguchi; Minoru Fukuhara; Akira Doi; Toshio Takada; Masashi Fujiwara; Jun Takada

doi:10.2497/jjspm.38.1043

Effect of Ba-addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System (IV)

Yoshihiro Kusano, Kazuhiro Yamaguchi, Minoru Fukuhara, Akira Doi, Toshio Takada, Masashi Fujiwara, Jun Takada

Faculty of Engineering

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

2 Citations (Scopus)

Abstract

In order to study the effects of Ba-addition to the high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system, measurements of X-ray diffraction and DC resistance, SEM observations and EDX analysis were made for samples with compositions of Bi:Pb:Sr:Ca:Cu: Ba=0.9:0.2:1.0:1.0:1.6:x (x=0−0.10). Samples were prepared by mixing powders of the high-Tc phase and BaCO₃ and heating at 835 to 855°C for 60h in air. The high-Tc phase was without other compounds obtained in samples with x=0.04 to 0.05 heated at 845 to 850°C for 60h. Dissolution of Ba into the high-Tc phase was confirmed by EDX analysis. Ba-addition increases the c-axis length of the high-Tc phase and Tc(R=0) up to 119K. The growth of the high-Tc phase was found to be accelerated by Ba-addition.

Original language	English
Pages (from-to)	1043-1047
Number of pages	5
Journal	Journal of the Japan Society of Powder and Powder Metallurgy
Volume	38
Issue number	8
DOIs	https://doi.org/10.2497/jjspm.38.1043
Publication status	Published - 1991

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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title = "Effect of Ba-addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System (IV)",

abstract = "In order to study the effects of Ba-addition to the high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system, measurements of X-ray diffraction and DC resistance, SEM observations and EDX analysis were made for samples with compositions of Bi:Pb:Sr:Ca:Cu: Ba=0.9:0.2:1.0:1.0:1.6:x (x=0−0.10). Samples were prepared by mixing powders of the high-Tc phase and BaCO3 and heating at 835 to 855°C for 60h in air. The high-Tc phase was without other compounds obtained in samples with x=0.04 to 0.05 heated at 845 to 850°C for 60h. Dissolution of Ba into the high-Tc phase was confirmed by EDX analysis. Ba-addition increases the c-axis length of the high-Tc phase and Tc(R=0) up to 119K. The growth of the high-Tc phase was found to be accelerated by Ba-addition.",

author = "Yoshihiro Kusano and Kazuhiro Yamaguchi and Minoru Fukuhara and Akira Doi and Toshio Takada and Masashi Fujiwara and Jun Takada",

year = "1991",

doi = "10.2497/jjspm.38.1043",

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pages = "1043--1047",

journal = "Journal of the Japan Society of Powder and Powder Metallurgy",

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T1 - Effect of Ba-addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System (IV)

AU - Kusano, Yoshihiro

AU - Yamaguchi, Kazuhiro

AU - Fukuhara, Minoru

AU - Doi, Akira

AU - Takada, Toshio

AU - Fujiwara, Masashi

AU - Takada, Jun

PY - 1991

Y1 - 1991

N2 - In order to study the effects of Ba-addition to the high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system, measurements of X-ray diffraction and DC resistance, SEM observations and EDX analysis were made for samples with compositions of Bi:Pb:Sr:Ca:Cu: Ba=0.9:0.2:1.0:1.0:1.6:x (x=0−0.10). Samples were prepared by mixing powders of the high-Tc phase and BaCO3 and heating at 835 to 855°C for 60h in air. The high-Tc phase was without other compounds obtained in samples with x=0.04 to 0.05 heated at 845 to 850°C for 60h. Dissolution of Ba into the high-Tc phase was confirmed by EDX analysis. Ba-addition increases the c-axis length of the high-Tc phase and Tc(R=0) up to 119K. The growth of the high-Tc phase was found to be accelerated by Ba-addition.

AB - In order to study the effects of Ba-addition to the high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system, measurements of X-ray diffraction and DC resistance, SEM observations and EDX analysis were made for samples with compositions of Bi:Pb:Sr:Ca:Cu: Ba=0.9:0.2:1.0:1.0:1.6:x (x=0−0.10). Samples were prepared by mixing powders of the high-Tc phase and BaCO3 and heating at 835 to 855°C for 60h in air. The high-Tc phase was without other compounds obtained in samples with x=0.04 to 0.05 heated at 845 to 850°C for 60h. Dissolution of Ba into the high-Tc phase was confirmed by EDX analysis. Ba-addition increases the c-axis length of the high-Tc phase and Tc(R=0) up to 119K. The growth of the high-Tc phase was found to be accelerated by Ba-addition.

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Effect of Ba-addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System (IV)

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