Ceramic Tube / Ceramic Rod / Ceramic Plate / Ceramic Valve / Ceramic Plunger / Ceramic Pump Manufacturer
Focus on Alumina / Zirconia ceramic parts R&D and production
+86 -181 2297 4730
Ceramic Tube / Ceramic Rod / Ceramic Plate / Ceramic Valve / Ceramic Plunger / Ceramic Pump Manufacturer
Focus on Alumina / Zirconia ceramic parts R&D and production
+86 -181 2297 4730
|
Silicon nitride (Si3N4) ceramics are inorganic material ceramics that do not shrink during sintering. Silicon nitride hardness is extremely high, especially hot-pressed silicon nitride, is one of the hardest substances in the world, with high hardness, low density, high temperature resistance and other properties. Si3N4 has good impact resistance due to its low thermal expansion coefficient and high thermal conductivity. |
 |
|
Properties of Silicon Nitride : Low density (3.2 g/cm3);Low-friction and non-magnetic High fracture toughness (7 MPam1/2) Good flexural strength (850 MPa) Low thermal expansion coefficient (3.2 10-6K-1) Creep resistance;High hardness Excellent Wear and Corrosion Resistance |
Silicon Nitride applications: Bearing balls and rollers Cutting tools;Turbine blades Valves, turbocharger rotors for engines Glow plugsMolten metal handling Thermocouple sheaths;Welding nozzles Welding jigs and fixtures |
| For more information about ceramics,please contact our engineers in time |
  |
|
|
Al 2O 3 |
ZrO2/Y2O3 | ZrO2/MgO | MgO | SiC | Si3N4 Reaction sintered | Si3N4 Hot pressed | ALN |
| Physical properties | ||||||||
| Density (g/cm3) | 3,9 | 5,9 | 5,75 | 3,58 | 3,2 | 3,27 | 3,29 | 3,26 |
| Molecular weight (g/mole) | 102 | - | - | 40,4 | 40,1 | 140 | 140 | 41 |
| Maximum service temperature air (°C) | 1700- 1800 | 1500 | 1000 | 2200 | 1500 | 1200- 1500 | 1100- 1600 | 1000- 1800 |
| Mechanical properties | ||||||||
| Hardness (Mohs) | 9 | - | - | 5,5 | 9 | - | - | 7 |
| Modulus of elasticity (GPa) | 300-400 | 200 | 200 | 250-300 | 420 | 170-220 | 280-310 | 318 |
| Poisson's ratio | 0,25 | - | - | 0,18 | 0,14 | 0,25-0,26 | 0,27 | 0,25 |
| Fracture toughness (MPa.m1/2) | 2-3 | 7-13 | 6-10 | - | 2,5-3,5 | 3,5-5 | 6,1 | 4,5 |
| Electrical properties | ||||||||
| Dielectric constant | 9-10 | - | - | 9-10 | - | 10 | 10 | 9,2 |
| Electrical resistivity at 20°C (Ohm.cm) | >10 14 | 10 13-10 14 | >10 10 | - | 10 2-10 6 | >10 7 | 10 12- 10 15 | >10 14 |
| Dielectric strength (kV/mm) | 10-20 | 9 | 2-10 | - | - | - | - | 15 |
| Thermal properties | ||||||||
| Specific heat (J/K/kg) | 900 | 400-500 | 420 | 870-880 | 750 | 690 | 680-800 | 800 |
| Thermal conductivity (W/m/K) at 20°C | 26-35 | 2,2-3,2 | 1,5-2,5 | 40-50 | 63-155 | 9-30 | 15-43 | 180 |
| Coefficient of thermal expansion ( 10-6) from 20 to 1000°C | 8-9 | 10-11 | 5-16 | 10-13 | 4-5 | 3 | 3,3 | 4,4-5,3 |
| Melting point (°C) | 2050 | 2590 | - | 2800 | 2500 | 1900 | 1900 |
2200 |
|
Physical Properties:
·Volume ·Density ·Melting point ·Boiling point ·Heat capacity ·Index of reflection ·Porosity (also we refer pore size) |
Mechanical Properties: ·compressive strength ·shear strength ·fracture toughness ·elasticity or plasticity ·ductility ·Hardness |
Electrical Properties: ·dielectric strength ·electrical conductivity ·insulating properties ·semiconducting properties ·superconducting properties ·dielectric constant |
|
Thermal Properties:
·insulating properties ·semi-conducting properties ·thermal conductivity ·thermal expansion ·thermal shock resistance |
Chemical Properties: ·alkali attack resistance ·acid attack resistance ·corrosion resistances |
Other ceramic properties... |
Know more details of the ceramics property, contact us ： admin@cerampart.com
|
Customization & Machining Service:
As a ceramic parts manufacturer,us offer a wide of the ceramic specification,and customized&machinables. Get a Quote On Your Customized Now!! or up a files by (email:admin@cerampart.com). Our Custom Capabilities: 1.High Purity Martoxid Powder 2.OEM Support, More Than 10 Technicians With 5-Year R&D Experience 3.35000 ㎡workshop, annual output could reach hundred million pieces. 4.All crafts are inspected strictly based on drawings,checked each month. 5.Best Service And Quick Delivery Via Fedex,DHL,UPS,TNT Etc. |
|
||||||||||||||||||||||||||
|
The general specifications service
1. Factory price with a discounts 2. Fast shipment within 24 hours 3. In stocks for hot sales sizes 4. MOQ:1qty |
The Custom service 1. Can be custom for special sizes by drawing 2. Can offer a samples within 2 days 3. The delivery time within 20 days after confirmed the order 4. Factory price and Senior ceramic engineer service |
Dynamic information Ceramic technology FAQ Ceramice exhibition
Ceramics quality Ceramics technical Ceramice after-sale Customer witness Patent certificate
Ceramic flange Ceramic bushing Ceramic plunger Ceramic pump valve
ADD：No. 21, Chuangxing Road, Shangsha Second Industrial Zone, Chang'an Town, Dongguan City
ADD：Southeast corner of the intersection of Changliu Road and Wangzhou Road, Qiyang High-tech Industrial Development Zone, Yongzhou City, Hunan Province, 426141,China
Mob：181 2297 4730 Tel：+86 746 3386888
Skype：+86 18122974730 Email：admin@cerampart.com
Mobile version
