Sialon (Silicon nitride type)
Features
-
- ①Low thermal expansion coefficient
- Similar thermal expansion to invar alloy
-
- ②Light weight
- Bulk density 3.2 g/cm3(40% of cast iron)
-
- ③High stiffness
- Young’s modulus 300 GPa (double of cast iron)
-
④High strength even under high temperatures (heat resistant material)
Characteristics
| Code | S110 | S110H | S120 | S140 | |
|---|---|---|---|---|---|
| Color | light grey | light grey | light grey | grey | |
| Bulk Density | g/cm3 | 3.24 | 3.25 | 3.22 | 3.20 |
| Flexural Strength | MPa | 880 | 1180 | 690 | 490 |
| Compressive Strength | MPa | - | - | - | - |
| Young's Modulus | GPa | 290 | 300 | 300 | 280 |
| Poisson's Ratio | - | 0.27 | 0.27 | 0.27 | 0.27 |
| Hardness | GPa | 14.5 | 14.7 | 12.7 | 12.7 |
| Fracture Toughness | MPa・m1/2 | 6.5 | 6.5 | 6.0 | 4.6 |
| Electrical Resistivity (RT) | Ω・cm | >1014 | >1014 | >1014 | >1014 |
| Thermal Expansion Coefficient (RT) | ×10-6/℃ | 1.3 | 1.3 | 1.3 | 1.3 |
| Thermal Conductivity (RT) | W/(m・K) | 21 | 21 | 21 | 21 |
| Specific Heat (RT) | J/(g・K) | 0.68 | - | 0.63 | - |
| Thermal Shock Resistance ⊿T | ℃ | 750 | - | 700 | - |
| Properties | High strength | Pore-less/high strength | Wear resistance | Simple machine |
* The data indicated herein is representative values and not guaranteed values.
