Title:
PRODUCTION OF SUPERCONDUCTOR BY ELECTROPHORESIS
Document Type and Number:
Japanese Patent JPH02190498
Kind Code:
A
Abstract:
PURPOSE:To safely carry out electrophoresis by high voltage, to facilitate the control of a bath, and to improve the working environment by using a ketonic solvent having specified m.p., flash point, and b.p. as the solvent. CONSTITUTION:The superconductor raw material is calcined or sintered, then crushed, dispersed in the solvent along with a charging agent, and electrodeposited on a electrode to produce superconductors of various shapes. In this method, a ketonic solvent having >=0 deg.C m.p., >=-5 deg.C flash point, and >=75 deg.C b.p. is used as the solvent. Since the oxide-based superconductor is produced in the solvent by electrodeposition at 10-60 deg.C bath temp., considerably fluidity is imparted to the bath at >=0 deg.C m.p. When the flash point is controlled to >=-5 deg.C, the difference from the lower-limit bath temp. is decreased, and the danger of ignition is reduced. Since the solvent has the b.p. of >=75 deg.C which is higher than the upper limit of the bath temp., vaporization is reduced, the bath composition is not changed, and the environment is not deteriorated.
Inventors:
KOURA NOBUYUKI
MIKURIYA YUJI
MORITA ARIHIKO
DEGUCHI TAKENORI
TAKETSU HIROBUMI
MIKURIYA YUJI
MORITA ARIHIKO
DEGUCHI TAKENORI
TAKETSU HIROBUMI
Application Number:
JP1077589A
Publication Date:
July 26, 1990
Filing Date:
January 19, 1989
Export Citation:
Assignee:
NISSHIN STEEL CO LTD
International Classes:
C25D13/02; H01B13/00; H01L39/24; (IPC1-7): C25D13/02; H01B13/00; H01L39/24
Attorney, Agent or Firm:
Shindo Mitsuru