Fiber-reinforced composite for protective armor, and method for producing the fiber-reinforced composition and protective armor

US7238414B2 · kind B2 · utility

Assignee

• SGL Carbon AG · DE

Inventors

• Bodo Benitsch · Buttenwiesen, DE
• Michael Heine · Meitingen, DE
• Sven Schweizer · Augsburg, DE
• Rainer Zimmermann-Chopin · Meitingen, DE

Key dates

• Filing date: May 24, 2004
• Grant date: Jul 3, 2007
• Expiry date: May 24, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/249924
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A fiber-reinforced composite body containing a first zone made of a ceramic matrix, which predominantly contains silicon carbide and, optionally, silicon and/or carbon and/or compounds thereof, and containing a second zone, which is located on a surface of the ceramic matrix zone and formed form a fiber-reinforced C/SiC ceramic. The fiber length decreases from the exterior of the fiber-reinforced ceramic zone up to the first zone and, optionally, up to one or more other zones that are arranged on the second zone. A method for producing the composite body is characterized by involving a joint infiltration at least of the first zone and of the second zone with liquid silicon and by the carrying out of a siliconization. A composite body of this type can be used, in particular, as armoring in the civil or military sectors.