Shaped bodies comprising textured superconducting material and a process for their production

US6221813A · kind A · utility

Assignee

• Aventis Research & Technologies GmbH & Co. · DE

Inventors

• Gunther Riedel · Kelkheim, DE
• Jurgen Neumann · Lüneburg, DE
• Joachim Bock · Lechenich, DE
• Stephan Gauss · Pocking, DE

Key dates

• Filing date: Nov 30, 1999
• Grant date: Apr 24, 2001
• Expiry date: Nov 30, 2019

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N60/0801

Abstract

The invention relates to a process for producing a shaped body, in which a mixture of oxidic starting powders or a superconducting material, which comprises at least 30% by volume of platelet-shaped primary particles and has such a composition that a high-temperature superconducting material is formed on later, suitable thermal treatment, is comminuted by milling, shearing and/or rolling in such a way that the comminuted powder has a powder particle size distribution having a d.sub.90 of .ltoreq.20 .mu.m, and in which the powders which have been comminuted in this way are isostatically compacted by the dry bag method.