Method for coating a semiconductor material using high remanent induction, coated superconductor material and the use thereof

US6830839B1 · kind B1 · utility

Assignee

• Nexans Superconductors GmbH · DE

Inventors

• Michael Backer · Mainz, DE
• Joachim Bock · Lechenich, DE
• Herbert Freyhardt · Oettingen, DE
• Andreas Leenders · Oettingen, DE
• Martin Ullrich · Leverkusen, DE
• Heribert Walter · Oebisfelde, DE

Key dates

• Filing date: Dec 12, 2001
• Grant date: Dec 14, 2004
• Expiry date: Dec 12, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N60/0661

Abstract

The invention relates to a method for coating shaped bodies made of a superconducting material based on (Y/SE)BaCuO. The invention is characterized in that a coating consisting of a coating material is applied to at least one part of a surface of the shaped body, whereby the coating material at least partially melts at a lower temperature than that of the material of the shaped body and/or is flowable at a lower temperature than that of said material. The shaped body with the applied coating material is heated to a temperature at which the material of the shaped body does not yet melt and/or is not yet flowable, however at which the coating material is at least partially melted thereon and/or is in a flowable state. In addition, at least one part of the area of the shaped body located near the surface is modified at said temperature and/or during a successive cooling, and the shaped body treated in such a manner is enriched with oxygen during cooling and/or during a successive heat treatment, whereby the modification contributes to the increase in remanent induction and/or to the critical current density of the shaped body enriched with oxygen. The invention also relates to a shape…