Ordnance – Shields – Shape or composition
Patent
1987-12-31
1989-10-31
Lechert, Jr., Stephen J.
Ordnance
Shields
Shape or composition
109 82, 428527, 428689, 428697, 428698, 428704, 428911, 501 89, 501 92, 501 96, F41H 500
Patent
active
048769410
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.
REFERENCES:
patent: 3251700 (1966-05-01), Mandorf, Jr.
patent: 3328280 (1967-06-01), Richards et al.
patent: 3895150 (1975-07-01), King et al.
patent: 4030427 (1977-06-01), Goldstein
patent: 4093524 (1978-06-01), Payne
patent: 4514268 (1985-04-01), DeAngelis
patent: 4605633 (1986-08-01), DeAngelis
The Journal of the American Ceramics Society, vol. 60, No. 12, pp. 674-679.
Abbaschian Gholamreza J.
Barnes Albert L.
Clere Thomas M.
Wheeler Douglas J.
Eltech Systems Corporation
Freer John J.
Lechert Jr. Stephen J.
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