Synthesis of highly phase pure BSCCO superconductors

US5468566A · kind A · utility

Assignee

• THE UNIVERSITY OF CHICAGO · US

Inventors

• Stephen E. Dorris · Bourbonnais, US
• Roger B. Poeppel · Glen Ellyn, US
• Barton C. Prorok · New Castle, US
• Michael T. Lanagan · Woodridge, US
• Victor A. Maroni · Naperville, US

Key dates

• Filing date: Sep 13, 1994
• Grant date: Nov 21, 1995
• Expiry date: Sep 13, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12333
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An article and method of manufacture of (Bi, Pb)-Sr-Ca-Cu-O superconductor. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi, Pb)-Sr-Ca-Cu-O superconductor.