Title:
OXIDE SUPERCONDUCTIVE FILM USING ORIENTED SUBSTRATE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3856852
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To easily obtain an oxide superconductive film excellent in orientation and excellent in superconductive characteristics such as a critical electric current density by forming an oxide superconductive film on a metal substrate having in-plane orientation.
SOLUTION: A metal member is rolled in a draft of ≥75% to produce the recrystallized metal substrate having a strongly threedimensionally oriented aggregate tissue. On the metal substrate, a film comprising an oxide superconductor precursor consisting mainly of an organic acid salt or an organic metal compound composing the oxide superconductor is formed. The film is thermally treated under a low oxygen fractional pressure of ≥10-1atm to thermally decompose the precursor, thus forming the oxide superconductive film on the metal substrate.
Inventors:
Hiroaki Kumakura
Kazumasa Togano
Takayo Hasegawa
Takao Nakamoto
Kazumasa Togano
Takayo Hasegawa
Takao Nakamoto
Application Number:
JP19944295A
Publication Date:
December 13, 2006
Filing Date:
August 04, 1995
Export Citation:
Assignee:
National Institute for Materials Science
Showa Densen Cable System Co., Ltd.
Showa Densen Cable System Co., Ltd.
International Classes:
C01G1/00; C01G3/00; C23C18/12; H01B12/06; H01B13/00; (IPC1-7): C01G3/00; C01G1/00; C23C18/12; H01B12/06; H01B13/00
Domestic Patent References:
| JP7192546A | ||||
| JP4139011A | ||||
| JP6092717A | ||||
| JP5147941A |
Attorney, Agent or Firm:
Kazuo Moriya