Silicon Nitride Si3N4 Ceramic Roller Guide Pulley
- MSJ/SN-008
- Silicon Nitride
- custom size
- 10 pcs per type
- metal wire drawing
Silicon nitride ceramic, chemical formula Si3N4, is an important structural ceramic material with good comprehensive performance. The properties of flexural strength, fracture toughness, wear resistance, thermal shock resistance are ranking high among all fine ceramics. Silicon nitride ceramic has extremely high temperature resistance, the mechanical strength can be maintained to a high temperature of 1200 ℃. Mascera could machine silicon nitride ceramics to a very smooth surface and in high size accuracy according to customers' designs.
Any inquiry please email info@mascera-tec.com or call +86 13860446139
Product detail
Silicon Nitride (Si3N4) is an advanced ceramic material known for its exceptional mechanical, thermal, and electrical properties. It exhibits outstanding hardness, thermal shock resistance, and impact resistance, surpassing the temperature capabilities of most metals. With superior creep and oxidation resistance, it is highly suitable for high-temperature applications. Furthermore, its low thermal conductivity and exceptional wear resistance make it an ideal choice for demanding industrial environments where high temperatures and heavy loads are present. Silicon Nitride is a reliable material that excels in the most challenging conditions.
Silicon nitride ceramic has very high hardness after sintering and must be machined by diamond tools. Mascera could machine silicon nitride ceramics to a very smooth surface and in high size accuracy according to customers' designs. We could support for both prototyping and bulk order, our aim is to be your best partner for technical ceramic parts.
Main properties of silicon nitride ceramic
High mechanical strength remains up to 1200℃
High fracture toughness
Extremely high hardness
Outstanding wear resistance and good self-lubricating property
Low thermal expansion
Excellent thermal shock resistance which can withstand sudden temperature change
Good resistance to acid&alkali and oxidation
Typical applications of silicon nitride ceramic
Bearing balls and rollers
Cutting tools
Valves, turbocharger rotors for engines
Turbine blades
Diesel engine glow plugs
Molten metal handling
Thermocouple sheaths
Welding jigs and fixtures
Welding nozzles
Material Data Sheet
| Item | Unit | Technical parameters |
|---|---|---|
| Materail | -- | Silicon Nitride |
| Color | -- | Black |
| Density | g/cm3 | ≥3.20 |
| Vickers Hardness | Mpa | 1500 |
| Modulus of Elasticity | Gpa | 300 |
| Fracture Toughness | Mpa.M1/2 | 6.2 |
| Flexural Strength (@R.T.) | Mpa | >720 |
| Compressive Strength (@R.T.) | Mpa | 2200 |
| Thermal Conductivity (@R.T.) | W/Mk | 15-20 |
Coefficient Of Thermal Expansion (20-1000℃) | 10-6/℃ | 3.0-3.2 |
| Poisson Ratio | -- | 0.26 |
| Max. Working Temperature | ℃ | 1200 |
| Volume Resistivity (@R.T.) | Ω.cm | >1014 |
| Dielectric Constant (1MHz, @R.T.) | -- | 8.2 |
| Dielectric Strength | kv/mm | 16 |
Available shapes of silicon nitride ceramics
Ceramic rod / ceramic pin / ceramic plunger
Ceramic tube / ceramic bushing / ceramic sleeve
Ceramic ring / ceramic washer / ceramic spacer
Ceramic disc
Ceramic plate / ceramic block
Ceramic ball
Ceramic piston
Ceramic nozzle
Ceramic crucible
Other custom ceramic parts
Packing & Shipment
| Package type | carton box with foam protection |
| Payment terms | TT / Western Union / Paypal 50% payment in advanced and 50% before shipment |
| Loading port | Xiamen, China |
| Shipping way | By sea / air / door-to-door express |
