Types of silicon carbide burner nozzle | ||
1. Recrystallized silicon carbide (RSIC) --- max temperature 1650℃ | 10~150mm | |
2. Nitride bonded silicon carbide (NSIC) --- max temperature 1450℃ | 2500mm | |
3. Reaction sintered silicon carbide (SiSiC / RBSiC) --- max temperature 1380℃ | ||
4. Pressureless sintered silicon carbide (SSiC) --- max temperature 1600℃ |
Application and use
Silicon carbide burner nozzle | ||||||||
Item | Unit | RSiC | NSiC | SiSiC | ||||
Density | (g/cm3) | 2.60-2.72 | ≥2.75 | ≥3.02 | ||||
Porosity | % | ≤17 | ≤10 | ≤0.1 | ||||
Thermal Expansion | 10-6 k-1 | 4.8 | 4.6 | 4.5 | ||||
Thermal conductivity | W/m.k | 23 | 25 | 45 | ||||
Bending strength (4-point) | MPa (at20℃) MPa (1200℃) | ≥ 90 ≥100 | ≥150 ≥170 | ≥250 ≥280 | ||||
Youngs Modulus | GPa (20℃) | 240 | 280 | 320 | ||||
Max temperature | ℃ | 1650 | 1450 | 1380 |