| 发明名称 |
OXIDE SUPERCONDUCTOR AND ITS MANUFACTURE |
| 摘要 |
PURPOSE:To easily manufacture the oxide superconductor in which a superconducting phase appears over the wide compositional range by subjecting an oxide sintered body contg. each specified molar ratio of Nd, Ce, Ba and Cu to heat treatment in a reducing atmosphere. CONSTITUTION:An oxide sintered body expressed by compositional formula of {Nd1-x(Ce1-yBay)x}2CuO4-d and contg. Nd, Ce, Ba and Cu each in the molar ratio of 2(1-x):2x(1-y):2xy:1 (where 0<x<0.6 and 0<y<1 are regulated) is subjected to heat treatment in a reducing atmosphere. In this way, the oxide superconductor in which compositional range showing superconducting characteristics is exceedingly widened can be obtd. in a simplified manufacturing process and reduced manufacturing time. |
| 申请公布号 |
JPH02296722(A) |
申请公布日期 |
1990.12.07 |
| 申请号 |
JP19890117262 |
申请日期 |
1989.05.12 |
| 申请人 |
KOKUSAI CHIYOUDENDOU SANGYO GIJUTSU KENKYU CENTER;TOKYO ELECTRIC POWER CO INC:THE;HITACHI LTD;MITSUBISHI MATERIALS CORP;TOSHIBA CORP;OKI ELECTRIC IND CO LTD;SUMITOMO ELECTRIC IND LTD;MITSUBISHI ELECTRIC CORP;KANSAI ELECTRIC POWER CO INC:THE;FURUKAWA ELECTRIC CO LTD:THE;CHUBU ELECTRIC POWER CO INC;MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
SAKURAI TAKESHI;YAMASHITA TORU;SAKAI SUKEYUKI;YAMAUCHI HISAO;TANAKA SHOJI;IKEDA HIROSHI;IKEGAWA SUMIO;ITO TAKAO;OKUDA SHIGERU;SUZUKI NOBURO;NISHIKAWA TOKUHIRO;NOZAKI AYUMI;MAEDA TOSHIHIKO;MIYAJIMA MASAMICHI;WADA TAKAHIRO |
| 分类号 |
C04B35/00;C01G1/00;C01G3/00;C04B35/45;H01B12/00;H01L39/12 |
主分类号 |
C04B35/00 |
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