Multilayer ceramic composite and process for forming the composite

US6759117B2 · kind B2 · utility

Assignee

• SGL Carbon AG · DE

Inventors

• Moritz Bauer · Augsburg, DE
• Martin Christ · Osterode, DE
• Udo Gruber · Neusäß, DE
• Michael Heine · Meitingen, DE
• Andreas Kienzle · Thierhaupten, DE
• Jens Rosenlocher · Augsburg, DE
• Rainer Zimmermann-Chopin · Meitingen, DE

Key dates

• Filing date: Jul 8, 2002
• Grant date: Jul 6, 2004
• Expiry date: Oct 29, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/292
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A multilayer ceramic composite is described which contains at least one supporting zone having oxidation-sensitive reinforcing fibers as well as a matrix. The matrix optionally contains oxidation-sensitive components. The composite further contains at least one surface layer, as well as at least one additional protective layer disposed between the supporting zone and surface layer, and whose matrix is composed substantially of at least one component of the matrix of the supporting zone or cover layer. The protective layer further contains additives that form self-healing layers.