Bullet Proof Silicon Nitride Ceramic (Si3N4)

2022-11-23



Armour Grade Silicon Nitride Ceramic

● Application:

Bullet proof Silicon Nitride (Si3N4) ceramic is an excellent combination of material properties. They are nearly as light as silicon carbide (SiC), but their micro-structure gives them excellent fracture

toughness, high hardness, and high bending strength. It is formed by cold isostatic pressing and sintered by Gas Pressure Sintering (GPS) and Hot Isostatic Pressure (HIP).

The bullet proof silicon nitride ceramic can be used as vehicle protection armour (such as war craft, armed helicopter, tank, infantry fighting vehicle, armoured vehicle) and body protection armour (such as bullet proof vest and bullet proof helmet).

● Technical Specifications

Properties

Unit

Gas Pressure Sintering
(GPS)

Hot Isostatic Pressure Sintering (HIP)

Density

g/cm3

3.25

3.25

Vikder Hardness

(Hv10)kg/mm2

1415

1490

Fracture Toughness

Mpa•m1/2

5.9

6.2

Flexural Strength

Mpa

815

912

Acid&Alkali Resistance

/

excellent

excellent

Elasticity Modulus

Gpa

320

320

Thermal Expansion

10-6℃/K

2.78

2.79


● Available Shape and sizes:

Length X Width :250 x 300 mm

Thickness: from 6mm up to 80mm

Regular Shape: ,Polygonal tile, Hexagonal shape,

● Key Advantages:

1. Excellent strength and high hardness which can withstand aggressive threat.

2. High fracture toughness, high resistance to multiple shots.

3. Shape and Size can be customized according to customer’s requirement.