Porosity and bulk density of silicon carbide refractory materials
Silicon carbide powder and silicon carbide particles are excellent raw materials for refractory products. It can increase the compressive strength, thermal erosion resistance, thermal stability, and oxidation resistance of refractory materials. Silicon carbide can greatly improve the thermodynamic properties of refractory products. It is mainly used for sintered silicon carbide ceramic refractory products, refractory clay, refractory bricks, refractory lining materials, refractory castables, refractory silicon carbide foam ceramics, and other products. Silicon carbide has a significant impact on the porosity and bulk density of these products, as shown in the following figure:
Type of silicon carbide refractory material, | porosity% | volume density g/cm3 |
| Hot-pressed sintered silicon carbide | 1-5 | 3.04-3.08 |
| Self-bonding silicon carbide | 1-5 | 3.0-3.15 |
| Silicon nitride bonding | 15-20 | 2.50-2.80 |
| Semi-dry manufacturing (10% clay) | 12-22 | 2.40-2.69 |
| Semi-dry manufacturing (20-60% clay) | 16-33 | 2.36-2.46
|
| Plastic Manufacturing | 20-32 | |
| Recrystallization process | 22-40 | 2.00-2.50 |
| Clinker silicon carbide composite | 20-25 | 1.92-2.08
|
| Corundum silicon carbide composite | 16-19 | 2.52-2.58 |
| Lightweight silicon carbide refractory material | 50-60 | 1.16-1.43 |
| Foam silicon carbide ceramics | 80-90 | 0.27-0.53
|
Silicon carbide used for refractory materials mainly includes 98% silicon carbide, 95% silicon carbide, 90% silicon carbide, and 88% silicon carbide,etc.
The models include silicon carbide powder and friction: 325F, 0.5-1mm,0-1mm, 1-3mm, 0-5mm, 1-5mm, 0-10mm, 1-10mm, etc.
