US 12,435,006 B2
Armor plating made of fine-grain boron carbide and silicon carbide
Jérôme Sant, Les Angles (FR); and Jérôme Brulin, Saint-Martin-de-Crau (FR)
Assigned to SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN, Courbevoie (FR)
Appl. No. 17/787,048
Filed by SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN, Courbevoie (FR)
PCT Filed Dec. 18, 2020, PCT No. PCT/FR2020/052558
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/123683, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 1915155 (FR), filed on Dec. 20, 2019.
Prior Publication US 2023/0034822 A1, Feb. 2, 2023
Int. Cl. B32B 9/00 (2006.01); B32B 1/08 (2006.01); B32B 3/04 (2006.01); B32B 5/02 (2006.01); B32B 15/18 (2006.01); B32B 18/00 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); C04B 35/563 (2006.01); C04B 35/565 (2006.01); C04B 35/626 (2006.01); C04B 35/64 (2006.01); C04B 35/653 (2006.01); C04B 41/45 (2006.01); C04B 41/48 (2006.01); C04B 41/51 (2006.01); C04B 41/83 (2006.01); C04B 41/88 (2006.01); B32B 7/12 (2006.01); F41H 5/04 (2006.01)
CPC C04B 35/565 (2013.01) [B32B 1/08 (2013.01); B32B 3/04 (2013.01); B32B 5/02 (2013.01); B32B 15/18 (2013.01); B32B 18/00 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); C04B 35/563 (2013.01); C04B 35/6264 (2013.01); C04B 35/62655 (2013.01); C04B 35/64 (2013.01); C04B 35/653 (2013.01); C04B 41/4596 (2013.01); C04B 41/4861 (2013.01); C04B 41/4892 (2013.01); C04B 41/5144 (2013.01); C04B 41/83 (2013.01); C04B 41/88 (2013.01); B32B 7/12 (2013.01); B32B 2250/40 (2013.01); B32B 2255/205 (2013.01); B32B 2255/26 (2013.01); B32B 2307/536 (2013.01); B32B 2307/72 (2013.01); B32B 2307/732 (2013.01); B32B 2571/02 (2013.01); C04B 2235/3821 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/425 (2013.01); C04B 2235/428 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/616 (2013.01); C04B 2235/6581 (2013.01); C04B 2235/77 (2013.01); C04B 2235/786 (2013.01); F41H 5/0414 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An antiballistic armor-plating component, comprising a ceramic body made of a material comprising, as percentages by volume:
between 35% and 55% of silicon carbide,
between 20% and 50% of boron carbide,
between 15% and 35% of a metallic silicon phase or of a metallic phase comprising silicon,
and wherein, as percentages by volume of said material:
the boron carbide grains with an equivalent diameter greater than 30 micrometers represent less than 5%,
the boron carbide grains with an equivalent diameter less than 5 micrometers represent more than 15% and less than 35%,
the silicon carbide grains with an equivalent diameter greater than 30 micrometers represent less than 5%, and
the silicon carbide grains with an equivalent diameter greater than or equal to 5 micrometers and less than or equal to 30 micrometers represent between 35% and 55%.