Description of silicon carbide support
Silicon carbide supports have the advantages of high strength, good oxidation resistance and thermal shock resistance, and are widely used in the production of ceramics, electric porcelain and grinding wheels.
Physical and chemical indicators of silicon carbide support
| Item | RSIC | NSIC | RBSIC |
|---|---|---|---|
| Table of Contents | SiC≥99% | SiC≤75% Si3N4≥25% | SiC≥90% Si≤10% |
| Bulk density，g.cm-³ | 2.65~ 2.75 | 2.75 ~2.85 | >3.02 |
| Surface porosity，% | < 15 | < 11 | < 0.1 |
| Modulus of elasticity of the joint at 20°C，Mpa | 90 ~ 100 | 160 ~ 170 | 250 |
| Modulus of elasticity of the weld at 1200°C，Mpa | 100~ 110 | 170 ~ 180 | 260 |
| Hardness at 20°C，Kg/mm² | 1800~ 2000 | 2500 | 2400 |
| Fracture toughness at 20°C，Mpa*M½ | 1.8~ 2.0 | 4 | 3.3 |
| Thermal conductivity at 1200°C，W/m .k | 35~36 | 20 | 45 |
| Thermal expansion at 20 ~ 1200°C，1x10-6*/°C | 4.6 | 4.7 | 4.5 |
| Max. operating temperature | 1650°C | 1500°C | 1 350°C |
Note: This product can be customized according to customer's requirements.