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Месяц | Минимальная цена | Макс. стоимость |
---|---|---|
Sep-15-2025 | 0.21 $* | 0.77 $* |
Aug-15-2025 | 0.98 $* | 0.10 $* |
Jul-15-2025 | 0.20 $* | 0.3 $* |
Jun-15-2025 | 0.32 $* | 0.95 $* |
May-15-2025 | 0.82 $* | 0.35 $* |
Apr-15-2025 | 0.55 $* | 0.45 $* |
Mar-15-2025 | 0.51 $* | 0.32 $* |
Feb-15-2025 | 0.68 $* | 0.65 $* |
Jan-15-2025 | 0.48 $* | 0.88 $* |
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 (25~1000℃) | 10-6/℃ | 3.0-3.2 |
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 |
✔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
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