Composite for protection against armor-piercing projectiles

US4876941A · kind A · utility

Assignee

• Eltech Systems Corporation · US

Inventors

• Albert L. Barnes · Wickliffe, US
• Thomas M. Clere · Orchard Park, US
• Gholamreza J. Abbaschian · Gainesville, US
• Douglas J. Wheeler · Farmington Hills, US

Key dates

• Filing date: Dec 31, 1987
• Grant date: Oct 31, 1989
• Expiry date: Dec 31, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31953
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A composite for protection against armor-piercing projectiles is disclosed. The composite can be a ceramic composite which may be utilized alone or with other materials, e.g., a metallic or plastic base or substrate layer. Composites of AlN with TiB.sub.2, SiC, B.sub.4 C or their mixtures are utilized. These ceramic composites can be prepared by hot pressing, reaction hot pressing, hot isostatic pressing or pressureless sintering. The composite may have well dispersed grains for at least one component, which grains can be interconnected with grains of the second component, and the grains may be of a size less than about five microns. The composite in layer form can have a metallic cover layer.