Patent · US Expired

(Bi,Pb)SrCaCuO precursor material for the oxide powder in tube method (OPIT)

US5670434A · kind A · utility

3Cited by

1References

6Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Marc Neubacher · Frankfurt am Main, DE
Joachim Bock · Lechenich, DE
Christoph Lang · Palo Alto, US
Eberhard Preisler · Lechenich, DE
Helga Weis · Frankfurt am Main, DE

Key dates

Filing date	Jan 30, 1996
Grant date	Sep 23, 1997
Priority date	—
Expiry date	Jan 30, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S505/782
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Process for preparing a high-T.sub.c superconductor as a precursor material for the oxide-powder-in-tube method (OPIT). The present invention relates to a process for preparing a high-T.sub.c superconductor as a precursor material for the oxide-powder-in-tube method, which involves mixing the oxides of the elements Bi, Sr, Ca and Cu and completely melting them at temperatures of >1000.degree. C., then casting the melt onto a substrate which is kept at room temperature, and disintegrating the cooled melt block and grinding it into a powder.

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