Silicon carbide is a new type of ceramics with high cost performance and excellent material properties. Due to features like high strength and hardness, high temperature resistance, great thermal conductivity and chemical corrosion resistance, Silicon Carbide can almost withstand all chemical medium. Therefore, SiC are widely used in oil mining, chemical, machinery and airspace, even nuclear energy and the military have their special demands on SIC. Some normal application we can offer are seal rings for pump, valve and protective armor etc.
High temperature oxidation resistance
Excellent Corrosion resistance
Good Abrasion resistance
High coefficient of heat conductivity
Self-lubricity, low density
High hardness
Customized design.
-Wear-resistant Field: bushing, plate, sandblasting nozzle,cyclone lining, grinding barrel,etc…
-High Temperature Field: siC Slab, Quenching Furnace Tube,Radiant Tube,crucible,Heating Element, Roller, Beam, Heat Exchanger, Cold Air Pipe, Burner Nozzle, Thermocouple Protection Tube, SiC boat,Kiln car Structure,Setter,etc.
-Silicon Carbide Semiconductor: SiC wafer boat, sic chuck,sic paddle, sic cassette, sic diffusion tube, wafer fork, suction plate, guideway,etc.
-Silicon Carbide Seal Field: all kinds of sealing ring, bearing, bushing, etc.
-Photovoltaic Field: Cantilever Paddle, Grinding Barrel, Silicon Carbide Roller,etc.
-Lithium Battery Field
| Propiedad | Value | Method |
| Density | 3.21 g/cc | Sink-float and dimension |
| Specific heat | 0.66 J/g °K | Pulsed laser flash |
| Flexural strength | 450 MPa560 MPa | 4 point bend, RT4 point bend, 1300° |
| Fracture toughness | 2.94 MPa m1/2 | Microindentation |
| Hardness | 2800 | Vicker’s, 500g load |
| Elastic ModulusYoung’s Modulus | 450 GPa430 GPa | 4 pt bend, RT4 pt bend, 1300 °C |
| Grain size | 2 – 10 µm | SEM |
| Thermal Conductivity | 250 W/m °K | Laser flash method, RT |
| Thermal Expansion (CTE) | 4.5 x 10-6 °K | Room temp to 950 °C, silica dilatometer |
| Item | Unit | Data | ||||
| RBSiC(SiSiC) | NBSiC | SSiC | RSiC | OSiC | ||
| SiC content | % | 85 | 75 | 99 | 99.9 | ≥99 |
| Free silicon content | % | 15 | 0 | 0 | 0 | 0 |
| Max service temperature | ℃ | 1380 | 1450 | 1650 | 1620 | 1400 |
| Density | g/cm3 | 3.02 | 2.75-2.85 | 3.08-3.16 | 2.65-2.75 | 2.75-2.85 |
| Open porosity | % | 0 | 13-15 | 0 | 15-18 | 7-8 |
| Bending strength 20℃ | Мpa | 250 | 160 | 380 | 100 | / |
| Bending strength 1200℃ | Мpa | 280 | 180 | 400 | 120 | / |
| Modulus of elasticity 20℃ | Gpa | 330 | 580 | 420 | 240 | / |
| Modulus of elasticity 1200℃ | Gpa | 300 | / | / | 200 | / |
| Thermal conductivity 1200℃ | W/m.K | 45 | 19.6 | 100-120 | 36.6 | / |
| Coefficient of thermal expansion | K-1X10-6 | 4.5 | 4.7 | 4.1 | 4.69 | / |
| HV | Kg/mm2 | 2115 | / | 2800 | / | / |
The CVD silicon carbide coating on the outer surface of recrystallized silicon carbide ceramic products can reach a purity of more than 99.9999% to meet the needs of customers in the semiconductor industry.
