Title:
SUPERCONDUCTING MATERIAL AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH01126262
Kind Code:
A
Abstract:
PURPOSE:To obtain a novel superconductor having a comparatively high critical temp., by compacting a raw material oxide powder expressed by the general formula and sintering it. CONSTITUTION:The general formula is as follow: (Ba, gamma)x(alpha, beta)1-xepsilonyCu1-yO3-z where, the above-mentioned element gamma denotes elements selected from group IIa element exclusive Ba of the periodic table and the ratio of gamma to Ba is 1-90atom.%, above-mentioned element alpha denotes Y or La, the above-mentioned betadenotes group IIIa element exclusive alpha of the periodic table, the ratio of betato alpha is 1-90atom.%, the above-mentioned element epsilon denotes metallic elements selected from group IIIb elements of the periodic table, x, y and z respectively denote numbers which satisfy 0<=x<=1, 0<=y<=1, 0<=z<1, the above-mentioned (Ba, gamma) and (alpha, beta) respectively mean that the respective element possesses exclusively the specified crystal sites at specified proportion.
Inventors:
ITOZAKI HIDEO
FUJITA NOBUHIKO
TANAKA SABURO
YATSU SHUJI
JODAI TETSUJI
FUJITA NOBUHIKO
TANAKA SABURO
YATSU SHUJI
JODAI TETSUJI
Application Number:
JP18521688A
Publication Date:
May 18, 1989
Filing Date:
July 25, 1988
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
C04B35/00; C01G1/00; C01G3/00; C04B35/45; H01B12/00; H01B13/00; H01L39/12; H01L39/24; (IPC1-7): C01G3/00; C04B35/00; H01B12/00; H01B13/00; H01L39/12; H01L39/24
Domestic Patent References:
| JPS645966A | 1989-01-10 |
Attorney, Agent or Firm:
Kenichiro Sano (2 outside)