China Hunan High Broad New Material Co.Ltd
China Hunan High Broad New Material Co.Ltd. Professional Magnesium alloy products & Advanced Ceramic products Manufacturer
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Alumina Silicon Carbide Boron Carbide Tiles NIJ IV Ceramic Armour Plate For Vehicles
NIJ IV Ceramic Armour Plate For Vehicles
Applications:
Application of B4C in National Defence Industry:
B4C is the material of bulletproof products ,such as bulletproof plate/vests,ceramic bulletproof tile in military airplane
pilot cabin,and modern armored personnel vehicle and tank,can bring obvious economic returns and military benefits .
Application of B4C in Nuclear Industry:
B4C can be prepared into controlling bars,adjusting bars,accident bars,safety bars,screen bars,radiation resistant
B4C tilts,plates or neutron absorber,andradiation resistant layer for atomic reactor together with cement which is the most important functional
competent only next to reactor fuel.
Application of B4C in Refractory Industry:
B4C can be used as antioxidation agent for low Carbon magnesia carbon bricks and castables. It can be applied in key positions which suffer from serious erosion and high
temperature,such as ladle, taphole(nozzle),sliding plates,and stopper.
Material Comparation Chart:
| Item | Al2O3 | SiC | B4C |
| Density | 3.5g/cm3 | 3.1g/cm3 | 2.4-2.65g/cm3 |
| Hardness | HV1650 | HV2750 | HV3300 |
| Flexural strength | 290 Mpa | 380 Mpa | 400-650 Mpa |
| Compressive strength | 850 Mpa | 3970 Mpa | 4100 Mpa |
| Fracture toughness | 4.8 Mpa.m1/2 | 4.0 Mpa.m1/2 | 4.5-7.0 Mpa.m1/2 |
| Thermal Conductivity | 20 m0k | 120m0k | 29 m0k |
Specifications:
| Density: 2.40-2.65 g/cm3 Elastic modulus: 510 Gpa Knoop Hardness: 3300 Flexural strength: 400-650 Mpa Compressive strength: 4100 Mpa Fracture toughness: 4.5-7.0 Mpa.m1/2 Coefficient of thermal expansion: 4.5x106 Thermal Conductivity: 29 m0k Maximum permissible service temperature in air: 1500℃ |
Advantage:
· High hardness next to diamond.
· Extremely wear and abrasion resistance.
· High flexural strength at room or high temperature.
· Excellent thermal shock resistance due to its low thermal expansion and high thermal conductivity.
· Excellent corrosion resistance.
· High temperature resistance.
Cerifications: