Title:
PRODUCTION OF OXIDE SUPERCONDUCTING MATERIAL
Document Type and Number:
Japanese Patent JPH01247598
Kind Code:
A
Abstract:
PURPOSE:To develop the title oxide-based superconducting material having a high critical temp. by using a metal or a ceramic base material having a metal layer on its surface as a cathode, applying a current between the cathode and an anode in an electrodeposition soln. wherein oxide-based superconducting powder having a specified composition is dispersed to deposit the superconducting powder, and then heat- treating the product. CONSTITUTION:An electrodeposition soln. 3 obtained by dispersing 1-500g/l of the powder of an A-B-Cu-O based oxide superconductor (where A is >=1 kind among group IIIa elements of the periodic table and B is >=1 kind among group IIa elements) in a solvent such as methyl ethyl ketone and acetone is charged in a vessel 2. A high-melting-point metal having excellent oxidation resistance or a ceramic base material 1 electroless-plated with Ag, Ni, etc., is used as the cathode, and a current is applied between the cathode and an anode 6 such as Pt in the soln. to deposit the power layer 4 of the surface superconducting material on the surface of the base material 1 by electrophoresis. The product is pulled up from the vessel 2, and heated to 800-1000 deg.C in the atmosphere to sinter the powder layer 4. As a result, a superconducting material A having the superconductor layer 7 having a high critical temp. is produced. A protective layer 8 of metal or synthetic resin is provided, as required, to prevent the aging deterioration of superconductivity.
Inventors:
SARUWATARI KOICHI
MAEJIMA SEIJU
OSANAI YUTAKA
KONO TSUKASA
IKENO YOSHIMITSU
NAKAGAWA MIKIO
MAEJIMA SEIJU
OSANAI YUTAKA
KONO TSUKASA
IKENO YOSHIMITSU
NAKAGAWA MIKIO
Application Number:
JP7776788A
Publication Date:
October 03, 1989
Filing Date:
March 30, 1988
Export Citation:
Assignee:
FUJIKURA LTD
International Classes:
H01L39/24; C01G1/00; C01G3/00; C04B41/90; C25D13/02; H01B12/06; H01B13/00; (IPC1-7): C01G3/00; C04B41/90; C25D13/02; H01B12/06; H01B13/00; H01L39/24
Domestic Patent References:
| JPH01156497A | 1989-06-20 |
Attorney, Agent or Firm:
Masatake Shiga (2 outside)
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