Silicon nitride ceramic bushings are a type of advanced ceramic material that is made by combining silicon and nitrogen. It is a non-oxide ceramic that has a unique crystal structure that gives it exceptional strength and toughness. Silicon nitride ceramics are known for their excellent mechanical, thermal, and chemical properties, which make them ideal for use in various industries.
Silicon nitride ceramics are a type of advanced ceramic material that is made by combining silicon and nitrogen. It is a non-oxide ceramic that has a unique crystal structure that gives it exceptional strength and toughness. Silicon nitride ceramics are known for their excellent mechanical, thermal, and chemical properties, which make them ideal for use in various industries.
Mian color of Si3N4 Ceramics is black.
Silicon nitride ceramic parts are becoming increasingly popular in various industries due to their excellent mechanical, thermal, and chemical properties. These parts are used in a wide range of applications, including aerospace, automotive, medical, and electronics.
Following is the property sheet:
| Type | Unit | Test Standard | Silicon Nitride |
| Material | Si₃N₄ | ||
| Colour | black | ||
| Density | g/cm³ | ISO18754:2003 | 3.2 |
| Flexural Strength | Mpa | ASTM-C1161-13 | 700 |
| Compressive Strength | Mpa | GB/T8489-2006 | 3000 |
| Modules of Elasticity (young) | Gpa | ASTM-C1198-09 | 290 |
| Fracture Toughness | MPa*m1/2 | ASTM-C1421-18 | 6 |
| Poision’s Ratio | ASTM-C1421-18 | 0.28 | |
| Hardness HRA | HRA | RICKWELL 60N | 91.5 |
| Vickers Hardness | HV1 | ASTM-C1327-15 | 1600 |
| Thermal Expansion Coefficient | 10-6K-1 | ASTM-E1461-13 | 3.2 |
| Thermal Conductivity | W/mk | ASTM-E1461-13 | 30 |
| Thermal Shock Resistance | △T.℃ | / | 600 |
| Max Use Temperature in oxidizing Atmosphere | ℃ | NO LOAD CONDITION | 1300 |
| Max use Temperatur in reducing or Inert Atmosphere | ℃ | NO LOAD CONDITION | 1400 |
| Volume Resistivity at 20°C | Ωcm | / | 1014 |
| Dielectric Strength | kV/mm | / | 15 |
| Dielectric Constant (1MHN) | ASTM-D2149-13 | 9 | |
| Dielectric Loss Angle at 20C, 1MHz | tanδ | ASTM-D2149-13 | 4X10-3 |
Silicon nitride ceramics have a wide range of applications due to their excellent mechanical, thermal, and chemical properties. Some of the common usages of silicon nitride ceramics are:
