Introduction
Silicon carbide thermocouple protection tubes show excellent performance under corrosive and abrasive conditions at elevated temperatures.Tech Ceramic has several grades of SiC materials to meet different environments and conditions.
Grade
Open porous SiC
- Tecsic-RC: Recrystallized Silicon Carbide (RSiC)
- Tecsic-N: Nitride Bonded Silicon Carbide (NSiC)
Dense SiC
- Tecsic-R: Reaction Bonded Silicon Carbide (SiSiC)
- Tecsic-P: Pressureless Sintered Silicon Carbide (SSiC)
Property
Tecsic-RC RSiC Recrystallized |
Tecsic-N NBSiC Nitride Bonded |
Tecsic-R SiSiC Reaction Sintered |
Tecsic-P SSiC Pressureless Sintered |
|
| Composition | 99% SiC | 74% SiC+23% Si3N4 | 90% SiC+10% Si | 99% SiC |
| Bulk Density g/cm3 | 2.7 | 2.75 | 3.1 | 3.1 |
| Apparent Porosity % | 15 | 11 | 0.1 | 0 |
| Modulus of Rupture R.T. MPa | 90-100 | 170-180 | 240-280 | 320-370 |
| Modulus of Rupture 1300℃ MPa | 100-110 | 180-190 | 250-290 | 330-400 |
| Thermal Expansion 20 – 1000°C, 10-6 K-1 | 4.6 | 4.7 | 4.3 | 5.0 |
| Thermal Conductivity (1200°C) W/m°K | 25 | 20 | 32 | 32 |
| Max Working Temp ℃ | 2000 in protective atmosphere | 1500 | 1350 | 1600 |
Features
- Excellent oxidation resistance
- Fast response due to high thermal conductivity
- Outstanding thermal shock resistance
- Excellent corrosion resistance against aggressive media
- High abrasion and erosion resistance
Application
- Furnaces and combustion chambers under harsh conditions
- Desulfurization unit