Effect of additive oxides with 'inert pair' elements on the formation of the high-Tc phase in the superconductor of Bi-Sr-Ca-Cu-0 system

Kentaro Ohhashi, Toshihiko Takai, Shigetoshi Tomio, Shigeharu Naka, Hideaki Itoh, Hitoshi Kitaguchi, Kiichi Oda, Jun Takada, Yoshinari Miura, Yasunori Ikeda, Mikio Takano

Research output: Contribution to journalArticle

Abstract

Specimens of M2.2Sr2.0Ca2.0Cu3.2Oy [M2.2=Bi1.8Pb0.4-xInx and Bi1.8Pb0.2M′0.2 (M′ = Sn, Sb and Y) ] were sintered at 855°C for 40-96hr after decarbonation in air. Their resistance temperature curves were compared in order to investigate effects of inert pair elements on formation of the high-Tc phase. With in content (x-value) below 0.18, stabilization of the high-Tc phase by incorporation of Pb remained almost unaffected. The step wise drop in resistance curves due to the coexistence of high and low-Tc phases was observed on specimens of In0.2, Sn0.2 and Sb0.2, showing that lighter inert pair elements have a poorer tendency to stabilize the high-Tc phase. The specimen with Y0.2 showed disappearance of the high-Tc phase as well as specimens of In0.4 without Pb.

Original languageEnglish
Pages (from-to)474-477
Number of pages4
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume36
Issue number5
Publication statusPublished - Jul 1989
Externally publishedYes

Fingerprint

Oxides
Superconducting materials
Stabilization
Air
Temperature

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

Cite this

Effect of additive oxides with 'inert pair' elements on the formation of the high-Tc phase in the superconductor of Bi-Sr-Ca-Cu-0 system. / Ohhashi, Kentaro; Takai, Toshihiko; Tomio, Shigetoshi; Naka, Shigeharu; Itoh, Hideaki; Kitaguchi, Hitoshi; Oda, Kiichi; Takada, Jun; Miura, Yoshinari; Ikeda, Yasunori; Takano, Mikio.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 36, No. 5, 07.1989, p. 474-477.

Research output: Contribution to journalArticle

Ohhashi, K, Takai, T, Tomio, S, Naka, S, Itoh, H, Kitaguchi, H, Oda, K, Takada, J, Miura, Y, Ikeda, Y & Takano, M 1989, 'Effect of additive oxides with 'inert pair' elements on the formation of the high-Tc phase in the superconductor of Bi-Sr-Ca-Cu-0 system', Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, vol. 36, no. 5, pp. 474-477.
Ohhashi, Kentaro ; Takai, Toshihiko ; Tomio, Shigetoshi ; Naka, Shigeharu ; Itoh, Hideaki ; Kitaguchi, Hitoshi ; Oda, Kiichi ; Takada, Jun ; Miura, Yoshinari ; Ikeda, Yasunori ; Takano, Mikio. / Effect of additive oxides with 'inert pair' elements on the formation of the high-Tc phase in the superconductor of Bi-Sr-Ca-Cu-0 system. In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 1989 ; Vol. 36, No. 5. pp. 474-477.
@article{f4b594b1c1934e9f80eea69afdad1a05,
title = "Effect of additive oxides with 'inert pair' elements on the formation of the high-Tc phase in the superconductor of Bi-Sr-Ca-Cu-0 system",
abstract = "Specimens of M2.2Sr2.0Ca2.0Cu3.2Oy [M2.2=Bi1.8Pb0.4-xInx and Bi1.8Pb0.2M′0.2 (M′ = Sn, Sb and Y) ] were sintered at 855°C for 40-96hr after decarbonation in air. Their resistance temperature curves were compared in order to investigate effects of inert pair elements on formation of the high-Tc phase. With in content (x-value) below 0.18, stabilization of the high-Tc phase by incorporation of Pb remained almost unaffected. The step wise drop in resistance curves due to the coexistence of high and low-Tc phases was observed on specimens of In0.2, Sn0.2 and Sb0.2, showing that lighter inert pair elements have a poorer tendency to stabilize the high-Tc phase. The specimen with Y0.2 showed disappearance of the high-Tc phase as well as specimens of In0.4 without Pb.",
author = "Kentaro Ohhashi and Toshihiko Takai and Shigetoshi Tomio and Shigeharu Naka and Hideaki Itoh and Hitoshi Kitaguchi and Kiichi Oda and Jun Takada and Yoshinari Miura and Yasunori Ikeda and Mikio Takano",
year = "1989",
month = "7",
language = "English",
volume = "36",
pages = "474--477",
journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",
issn = "0532-8799",
publisher = "Funtai Funamtsu Yakin Kyokai/Japan Soc. of Powder Metallurgy",
number = "5",

}

TY - JOUR

T1 - Effect of additive oxides with 'inert pair' elements on the formation of the high-Tc phase in the superconductor of Bi-Sr-Ca-Cu-0 system

AU - Ohhashi, Kentaro

AU - Takai, Toshihiko

AU - Tomio, Shigetoshi

AU - Naka, Shigeharu

AU - Itoh, Hideaki

AU - Kitaguchi, Hitoshi

AU - Oda, Kiichi

AU - Takada, Jun

AU - Miura, Yoshinari

AU - Ikeda, Yasunori

AU - Takano, Mikio

PY - 1989/7

Y1 - 1989/7

N2 - Specimens of M2.2Sr2.0Ca2.0Cu3.2Oy [M2.2=Bi1.8Pb0.4-xInx and Bi1.8Pb0.2M′0.2 (M′ = Sn, Sb and Y) ] were sintered at 855°C for 40-96hr after decarbonation in air. Their resistance temperature curves were compared in order to investigate effects of inert pair elements on formation of the high-Tc phase. With in content (x-value) below 0.18, stabilization of the high-Tc phase by incorporation of Pb remained almost unaffected. The step wise drop in resistance curves due to the coexistence of high and low-Tc phases was observed on specimens of In0.2, Sn0.2 and Sb0.2, showing that lighter inert pair elements have a poorer tendency to stabilize the high-Tc phase. The specimen with Y0.2 showed disappearance of the high-Tc phase as well as specimens of In0.4 without Pb.

AB - Specimens of M2.2Sr2.0Ca2.0Cu3.2Oy [M2.2=Bi1.8Pb0.4-xInx and Bi1.8Pb0.2M′0.2 (M′ = Sn, Sb and Y) ] were sintered at 855°C for 40-96hr after decarbonation in air. Their resistance temperature curves were compared in order to investigate effects of inert pair elements on formation of the high-Tc phase. With in content (x-value) below 0.18, stabilization of the high-Tc phase by incorporation of Pb remained almost unaffected. The step wise drop in resistance curves due to the coexistence of high and low-Tc phases was observed on specimens of In0.2, Sn0.2 and Sb0.2, showing that lighter inert pair elements have a poorer tendency to stabilize the high-Tc phase. The specimen with Y0.2 showed disappearance of the high-Tc phase as well as specimens of In0.4 without Pb.

UR - http://www.scopus.com/inward/record.url?scp=0024699174&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024699174&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0024699174

VL - 36

SP - 474

EP - 477

JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

SN - 0532-8799

IS - 5

ER -