tel call at 008613167029626

email leave a message info@bearings-factory.com

banner
Introduction to Bearings
home

Introduction to Bearings

Silicon Nitride (si3n4) Properties And Applications

Silicon Nitride (si3n4) Properties And Applications

  • 2021/01/01

Silicon Nitride Si3N4 Ceramic is one kind of technical ceramic materials which has good comprehensive properties for different applications.



Its mechanical strength can be kept up to 1200℃. Its hardness and wear resistance performance ranks high among all technical ceramic materials.



It has high electrical resistivity, high dielectric constant and low dielectric loss, is a choice for electrical insulation.



Furthermore, it has good chemical stability and resistance to oxidation.


Properties Unit Value
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/m.k 15-20
Coefficient of Thermal Expansion 10-6/℃ 3.0-3.2
(25~1000℃)
Poisson Ratio - 0.26
Max. Working Temperature 1200
Volume Resitivity (@R.T.) Ω.cm >1014
Dielectric Constant(1MHz, @R.T.) - 8.2
Dielectric Strength Kv/mm 16
Si3N4 Ceramic Customized Parts

Application:

Bearing balls and rollers

Cutting tools

Valves, turbocharger rotors for engines

Turbine blades

Diesel engine glow plugs

Molten metal handling

Thermocouple sheaths

Welding jigs, fixtures and nozzles

Ceramic Ball


MKL FACTORY  can produce various ceramic structural parts according to customer requirements.

We can produce with materials include ZrO2., SI3N4, AI2O3, SiC.

Products include various ceramic sliding bearings, ceramic seals, ceramic bushings, ceramic shaft cores, blocks, and ceramics. Standard parts, ceramic rods, ceramic roller needles.


Si3N4 Ceramic Rollers
Ceramic Pins
Silicon Nitride Ceramic Roller


copyright © 2021 ZZ Bearing (Shanghai) Co., Ltd... | TMB Bearing | Tianma Bearing | TMB Special Bearings | TMB Deep Groove Ball Bearing

top