Boron aluminum magnesium and boron carbide compositions and articles incorporating such compositions
AssigneeNew Tech Ceramics, Inc
InventorPeter Hong
Life of this patent
Estimating the term…
Abstract
A ballistic protective composition having a sintered product of boron carbide and BAM where the sintered product includes up to about 80% BAM by weight based on the weight of the total BAM and boron carbide and wherein the sintered product is configured to prevent penetration of a ballistic threat through the sintered product. The ballistic protective composition may also be bonded to a ballistically protective fabric material to form a ballistic composite, which may be a wearable material, such as a body armor article.
Claims20
A ballistic protective material comprising:
- a ceramic material that is either:
- (1) a monolithic, sintered ceramic substrate comprising a boron carbide and a BAM;
- or (2) a multi-layered sintered ceramic substrate comprising a first layer comprising BAM and a second layer disposed on the first layer wherein the second layer comprises the boron carbide;
- wherein the ceramic material comprises from about 40% to about 80% BAM by weight based on the weight of the total of the BAM and the boron carbide;
- and
- wherein the ceramic material has a density of from about 2.4 gm/cc to about 2.6 gm/cc.
A ballistic protective material comprising:
- a ceramic material that is a monolithic, sintered ceramic substrate comprising a boron carbide and a BAM wherein the ceramic material comprises the BAM in an amount of from 40% to 80% by weight of the ceramic material and boron carbide in an amount of from 40% to 80% of the ceramic material.
A ballistic protective composite material comprising:
- a ceramic material that that is either:
- (1) a monolithic, sintered ceramic substrate consisting of a boron carbide and a BAM;
- or (2) a multi-layered sintered ceramic substrate comprising a first layer consisting of BAM and a second layer disposed on the first layer wherein the second layer consists of the boron carbide;
- wherein the ballistic protective composite material stops at least two projectiles that impact the same or substantially the same location on the ballistic protective composite material from penetrating the ballistic protective composite material when the at least two projectiles each individually have an energy level of from about 13,200 ft·lbf to about 14,900 ft·lbf.
Dependencies are inferred from the claim text.