Introduction Ceramic Tile Body Armor
Ceramic materials have the advantages of high hardness and light weight. They have strong defensive capabilities against kinetic energy bombs and ammunition fragmentation, and now they have become a protective armor widely used in ceramic tile body armor, vehicles,aircraft and other equipment.This type of ceramic composite armor not only resists conventional ammunition attacks, but also withstands neutron and anti-tank missile attacks.The earliest applications of ceramic tile body armor can be traced back to 1918 after the end of World War I. Although the discovery of ceramic materials was very early, its widespread use in military applications began only after the 1970s.
Performance comparison table
Table 1:Ballistic material comparison between Alumina and Silicon Carbide
| Ceramic | Density (g/cm3) | Modulus of elasticity (GPa) | Bending strength (MPa) | Micro hardness (GPa) | Rupture toughness (MPa•m1/2) |
| Alumina | 3.8 | 340 | 350-400 | 14 | 2.8-4.0 |
| Silicon carbide | 3.07 | 400 | 400 | 22 | 3.9-4.3 |
Characteristics Ceramic Tile Body Armor
Table 2:Compound Ballistic Plate comparison between Alumina Silicon carbide(same purpose,but reduce weight)
| Plate Art NO | Plate materials | Plate weight(kg) | Reduced weight(g) | Performance |
| Type I | Alumina/PE | 2.4±0.1 | 400 | SS109 Rifle normal steel-cored bullet with size 5.56mm shooting by the type M 16 Rifle(Speed 946m/s) |
| Silicon carbide/PE | 2.0±0.1 | |||
| Type ‖ | Alumina/PE | 2.9±0.1 | 300 | Normal steel-cored bullet 7.62mm type of 53 shooting type 1985 sniper rifle (Speed 946m/s) |
| Silicon carbide/PE | 2.6±0.1 |
Table 3:Compound Ballistic materials comparison between Alumina and SiC(same weight,performance improved)
| Plate type | Plate Weight(kg) | Bulletproof performance |
| Alumina/PE Assembled Plate | 2.9 | Normal steel-cored bullet size 7.62 type 53 shooting by type 198 sniper rifle(Speed 820m/s) |
| SIC/PE Assembled Plate | 2.5 | Normal Piercing Incendiary size 7.62mm 53 type shooting by type 1985 Sniper Rifle(Speed 870m/s) |
Technical Data Sheet of Ceramic Tile Body Armor
| Item | Unit | Data |
| Max Working temperature | ℃ | 1380 |
| Density | g/cm³ | ≥3.02 |
| Porosity | % | <0.1% |
| Bending Strength | Mpa | 250(20℃) |
| Mpa | 280(1200℃) | |
| Modulus of elasticity | Gpa | 330(20℃) |
| Gpa | 300(1200℃) | |
| Thermal conductivity | W/m.k | 45(1200℃) |
| Coefficient of thermal expansion | K-1×10-6 | 4.5 |
| Rigidity | 13 | |
| Acid alkaline-proof | Excellent |
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