 |
| Quantity: | |
|---|---|
03005
HaoRui
custom
Ceramic materials have long replaced metal in the production of welding pins, which ensure a perfect fit for sheet metal and nuts in projection welding and are subject to temperatures of up to 800°C. Gas-pressure sintered silicon nitride ceramics are at a distinct advantage here.
Silicon nitrides (Si3N4) feature an excellent combination of material properties. They are nearly as light as silicon carbide (SiC), but their microstructure gives them excellent thermal shock resistance and their high fracture toughness makes them resistant to impacts and shocks.
Properties Of Silicon Nitride
| Property | Item | Data | Unit |
Mechanical Characteristics | Color | Black/Grey | - |
| Density | 3.2 | g/cm3 | |
| Bending Strength | 750 | MPa | |
| Compressive Strength | 3800 | MPa | |
| Elastic Modulus | 290 | GPa | |
| Fracture Toughness | 7 | MPa m1/2 | |
| Weber Coefficient | 15 | m | |
| Vickers Hardness | 1700 | HV 0.5 | |
Thermal Characteristics | Coefficient of Line Thermal Expansion | 2 | 10-6 K-1 |
Thermal Conductivity | 20 | W/mK | |
Thermal Shock Resistance (Put in Water) | 750 | ΔT℃ | |
Max Working Temperature | 1300 | ℃ | |
Electrical Characteristics | Volume Resistance at 20℃ | >1014 | Ωcm |
Dielectric Strength | 10×106 | V/m | |
Dielectric Constant | - | εr | |
One MHZ Dielectric Loss Angle at 20℃ | - | tanδ | |
Chemical Characteristics | Nitric Acid(60%)90℃ | 1 | WT Loss mg/cm2/day |
Sulphuric Acid(95%)95℃ | ≒0.00 | ||
| Caustic Soda(30%)80℃ | 0.2 |
Ceramic materials have long replaced metal in the production of welding pins, which ensure a perfect fit for sheet metal and nuts in projection welding and are subject to temperatures of up to 800°C. Gas-pressure sintered silicon nitride ceramics are at a distinct advantage here.
Silicon nitrides (Si3N4) feature an excellent combination of material properties. They are nearly as light as silicon carbide (SiC), but their microstructure gives them excellent thermal shock resistance and their high fracture toughness makes them resistant to impacts and shocks.
Properties Of Silicon Nitride
| Property | Item | Data | Unit |
Mechanical Characteristics | Color | Black/Grey | - |
| Density | 3.2 | g/cm3 | |
| Bending Strength | 750 | MPa | |
| Compressive Strength | 3800 | MPa | |
| Elastic Modulus | 290 | GPa | |
| Fracture Toughness | 7 | MPa m1/2 | |
| Weber Coefficient | 15 | m | |
| Vickers Hardness | 1700 | HV 0.5 | |
Thermal Characteristics | Coefficient of Line Thermal Expansion | 2 | 10-6 K-1 |
Thermal Conductivity | 20 | W/mK | |
Thermal Shock Resistance (Put in Water) | 750 | ΔT℃ | |
Max Working Temperature | 1300 | ℃ | |
Electrical Characteristics | Volume Resistance at 20℃ | >1014 | Ωcm |
Dielectric Strength | 10×106 | V/m | |
Dielectric Constant | - | εr | |
One MHZ Dielectric Loss Angle at 20℃ | - | tanδ | |
Chemical Characteristics | Nitric Acid(60%)90℃ | 1 | WT Loss mg/cm2/day |
Sulphuric Acid(95%)95℃ | ≒0.00 | ||
| Caustic Soda(30%)80℃ | 0.2 |
