Reaction bonded SIC(RBSIC)
According to different grade of particle sizes of RB-SIC formula, SIC is mixed up with carbon, then SI is involved in the reaction process in high temperature sintering. But as there is about 10% free Silicon exist in the RB-SIC, so it is inferior to sintered SIC in some application. Like hydrofluoric acid, strong alkali and oxidizing medium, it cannot be used, and it's maximum working temperature is 1200℃.
Typical Physical Property Sheet
|
Property |
Unit | RB-SIC |
| Density | g/cm³ | ≥3.00 |
| Hardness | knoop | 2400 |
| Porosity | % | ≤0.3 |
| Free-Si content | % | ≤15 |
| Free silicon content | % | 0.1 |
| Compressive strength | Mpa | ≥2200 |
| Elastic Modulus | GPa | ≥400 |
| Elastic Modulus | 400 | |
| Thermal Expansion | /℃ | 4.5×10-6 |
|
Temperature Limit: Oxidizing Atmosphere |
°C | 1200 |
