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Silicon nitride ring has great strength and fracture toughness, good thermal shock resistance, and excellent wear and impact resistance. It is ideal for a wide range of applications. Its low density and great strength also enable the optimal implementation of lightweight structures.
Silicon nitride ceramic is an inorganic material ceramic that does not shrink during sintering. There are five different methods to produce Silicon Nitride including SRBSN, GPSN, HPSN, HIP-SN, and RBSN, making the application and working material different slightly.
| Item | Unit | Typical Values |
| Density | g/cm3 | 3.22 |
| Physical Properties | ||
| Hardness | – | HRA90 |
| Vickers Hardness (Hv50) | HV0.5 | >1550 |
| Modulus of Elasticity | Gpa | 290 |
| Flexural Strength | MPa | >600 |
| Compressive Strength | MPa | 2500 |
| Fracture Toughness, KIc | MPa•m1/2 | >6.0 |
| The Thermodynamic Property | ||
| Max. Use Temperature | ºC | 1200 |
| Thermal Conductivity | W/m•k | 15-20 |
| Thermal Expansion Coefficient | 10-6/ ºC | >3.1 |
| Thermal Shock Resistance | ΔT ºC | 500 |
| Specific Heat Capacity | KJ/kg.k | 700 |
| Electrical Property | ||
| Volume Resistivity at 20 ºC | Ω•cm | 1.0×1012 |
-High strength over a wide temperature range
-High fracture toughness
-High hardness
-Outstanding wear resistance
-Low thermal expansion and high thermal conductivity
-Good thermal shock resistance
-Good resistance to chemical and oxidation
Silicon nitride rings are widely used in machinery, metallurgy, the chemical industry, aviation, and the semiconductor industry.
Our silicon nitride ring is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
