Title:
【発明の名称】超電導体層を有する金属体からなる物品を製造する方法
Document Type and Number:
Japanese Patent JP2695561
Kind Code:
B2
Abstract:
A method of making a ribbon-like or sheet-like superconducting composite body is disclosed. The method is well suited for making long lengths (e.g., >100m) of ribbon or large areas (e.g., > 100cm<2>) of sheet-like composite. The method comprises forming a Bi-Sr-Ca-Cu-oxide-containing layer on a metal (exemplarily Ag) substrate, and mechanically deforming (typically by rolling) the thus formed composite such that the oxide is densified to more than 80% of the theoretical density. Subsequently the oxide layer is at least partially melted and allowed to re-solidify such that a large portion of the oxide crystals has c-axis alignment. After appropriate heat treatment in an O2-containing atmosphere, thus produced superconductor ribbons or sheets can have high Jc (>/=10<4>, frequently > 10<5> A/cm<2>) for temperatures less than about 20K and in magnetic fields less than about 5T.
Inventors:
Sungo Jin
Thomas Henry Teifel
Thomas Henry Teifel
Application Number:
JP2746092A
Publication Date:
December 24, 1997
Filing Date:
January 20, 1992
Export Citation:
Assignee:
AT&T CORP.
International Classes:
C01G1/00; C01G29/00; C30B29/22; H01B12/06; H01B13/00; H01L39/24; (IPC1-7): H01L39/24
Domestic Patent References:
| JPS63285812A | ||||
| JPH02279507A | ||||
| JPH02196005A | ||||
| JPH0375103A | ||||
| JPH035358A | ||||
| JPH02273418A | ||||
| JPH03218907A |
Attorney, Agent or Firm:
Hirofumi Mimata