Patent · US Expired

Method of making electrical contacts on bi-based oxide superconductors

US5506199A · kind A · utility

4Cited by

2References

10Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Joachim Bock · Lechenich, DE
Eberhard Preisler · Lechenich, DE
Steffen Elschner · Heidelberg, DE

Key dates

Filing date	Nov 15, 1994
Grant date	Apr 9, 1996
Priority date	—
Expiry date	Nov 15, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S505/739
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to solid bodies made of high-temperature superconducting material to which contact is made by solid, compact metallic conductors. To produce said solid bodies, high-temperature superconducting material is either melted completely or a melt is obtained from the oxides of bismuth, strontium, calcium and copper, and, optionally, of antimony and lead. The solid, compact metallic conductors made of silver, gold, a platinum metal or an alloy containing said metals are then partially encased in the melt and the melt is allowed to solidify. Finally, the solid body obtained is annealed together with the conductors in a first stage at temperatures of from 710.degree. to 810.degree. C. and in a second stage in an oxygen-containing atmosphere at temperatures of from 750.degree. to 880.degree. C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.