Ceramic armor and method of making by encapsulation...

Details Ceramic armor and method of making by encapsulation... Ceramic armor and method of making by encapsulation...

2006-07-04

2006-07-04

Eldred, J. Woodrow (Department: 3641)

Ordnance

Shields

Shape or composition

C089S036040, C089S036080, C109S049500, C428S551000

Reexamination Certificate

active

07069836

ABSTRACT:
A ceramic armor is disclosed in several embodiments. In a first embodiment, a metal base plate has a metal frame assembled on it having a central opening into which the ceramic material and stiffening plate are placed. A cover plate is placed over the frame to enclose the ceramic material on all sides. In a second embodiment, the frame has an open central area that has two crossing walls that define four sub-chambers. Four sets of ceramic material and stiffening plate are placed in the respective sub-chambers and a covering plate is placed over them. In a further embodiment, the frame has a plurality of cavities mechanically formed in it. A stiffening plate and a ceramic tile or plate are placed in each cavity and a cover plate is placed over the frame. The metal used to encapsulate the ceramic material may, if desired, comprise a Titanium alloy such as Ti-6Al-4V, and the ceramic material may comprise Silicon Carbide, Boron Carbide, Tungsten Carbide, Titanium Diboride, Aluminum Oxide or Aluminum Nitride. The stiffening plate is preferably made of a Ti—TiB cermet composite but may also be comprised of an armor ceramic such as WC, TiB2, Al2O3or B4C. A hot pressing procedure is carried out on the armor to cause the metal to plastically deform about the encapsulated ceramic material.

REFERENCES:
patent: 3616115 (1971-10-01), Klimmek
patent: 5361678 (1994-11-01), Roopchand et al.
patent: 5443917 (1995-08-01), Tarry
patent: 5455079 (1995-10-01), Oden et al.
patent: 6635357 (2003-10-01), Moxson et al.
patent: 2004/0020353 (2004-02-01), Ravid et al.

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