Process for producing tubular parts of high-T.sub.C superconductor material

US5478801A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Christoph Lang · Palo Alto, US
• Iris Kullmer · Frankfurt, DE
• Joachim Bock · Lechenich, DE

Key dates

• Filing date: Jun 21, 1994
• Grant date: Dec 26, 1995
• Expiry date: Jun 21, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S505/741
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a process for producing cylindrical or round parts of high-T.sub.c superconductor material comprising bismuth, strontium, calcium, copper and oxygen. In this process, a pre-prepared finely-divided oxide mixture with organic additives is first introduced at room temperature into a casting mold. The shaped mixture is then converted into the superconducting shaped part by subsequent thermal treatment.