Title:
【発明の名称】酸化物超電導材料の製造方法
Document Type and Number:
Japanese Patent JP2583533
Kind Code:
B2
Abstract:
PURPOSE:To uniformly and sufficiently feed a small quantity of oxygen and enable production of a stabilized material, by filling a precursor in a hollow vessel and passing an O2-containing gas through the interior thereof in heat- treating the precursor, such as powdery form, providing an oxide superconductor. CONSTITUTION:A powdery, granular or massive precursor 10, containing elements constituting an oxide superconductor expressed by the formula A-B-Cu- O (A is one or more of group IIIa elements, such as Sc, Y, Ce, Yb, Er, Ho and Dy; B is one or more group IIa elements, such as Ca, Sr and Ba) and capable of providing the oxide superconductor by subjecting the precursor to heat treatment is prepared. The precursor 10 is then filled in a hollow vessel 11 having a gas feed port (11a) and a discharge port (11b) and a gas containing O2 is then fed from the feed port (11a) into the vessel 11, passed through interstices between particles of the precursor 10 in the vessel and then discharged from the discharge port (11b). The interior of the vessel 11 is simultaneously heated to heat-treat the precursor 10.
Inventors:
SADAKATA NOBUYUKI
KONO TSUKASA
IKENO YOSHIMITSU
SUGIMOTO MASARU
AOKI SHINYA
USUI TOSHIO
NAKAGAWA MIKIO
KUME ATSUSHI
GOTO KENJI
KONO TSUKASA
IKENO YOSHIMITSU
SUGIMOTO MASARU
AOKI SHINYA
USUI TOSHIO
NAKAGAWA MIKIO
KUME ATSUSHI
GOTO KENJI
Application Number:
JP26591987A
Publication Date:
February 19, 1997
Filing Date:
October 21, 1987
Export Citation:
Assignee:
FUJIKURA KK
International Classes:
C04B35/00; C01G1/00; C04B35/45; H01B12/02; H01B13/00; H01L39/24; (IPC1-7): C04B35/495; C01G1/00; H01B13/00; H01L39/24
Domestic Patent References:
| JP5360549U |
Attorney, Agent or Firm:
Masatake Shiga (1 person outside)