Technical Ceramics
Silicon Nitride/ SSN E
Silicon Nitride/SSN E
Silicon Nitride (Si3N4) is a unique technical ceramic, available from Morgan as SSN Nilcra® SSN E.
Silicon Nitride (Si3N4) is a unique technical ceramic, available from Morgan as SSN Nilcra® SSN E.
SSN Nilcra® SSN E grade
Nilcra® SSN E is an exceptionally reliable, hard-wearing and nonporous silicon nitride; a high strength ceramic designed for applications demanding high durability, toughness, corrosion, and wear resistance even at very high temperatures (up to 1,000°C [1,832°F]).
Additionally, its low coefficient of thermal expansion, combined with high strength and toughness, provides excellent thermal shock resistance outperforming most other ceramic materials when used in demanding high temperature conditions.
Nilcra® SSN E is a sintered silicon nitride based ceramic material containing interlocking grains of beta phase silicon nitride contributing to outstanding durability and performance.
Morgan's SSN E is suitable for a range of applications:
|
Physical properties |
|||
|---|---|---|---|
|
Colour |
Grey |
||
|
Density |
g/cm3 |
3.24 |
@20°C |
|
Porosity |
% |
<0.1 |
@20°C |
|
Flexural strength |
MPa |
850 |
@20°C |
|
Weibull modulus |
10 |
@20°C |
|
|
Compressive strength |
MPa |
3500 |
@20°C |
|
Modulus of elasticity |
GPa |
290 |
@20°C |
|
Poisson's ratio |
0.25 |
@20°C |
|
|
Hardness |
HV0.3 kg/mm2 |
1500 |
@20°C |
|
Fracture Toughness |
MPa√m |
8 |
@20°C |
|
Average grain size |
μm |
1-10 |
|
|
Electrical resistivity |
Ohm.com |
>1012 |
@20°C |
|
Thermal conductivity |
W/m.K |
28 |
@20°C |
|
Specific heat capacity |
J/g.K |
0.65 |
@20°C |
|
Thermal shock resistance |
∆T °C |
900 |
|
|
Maximum use temperature |
°C |
1200 |
|
|
Thermal expansion coefficient |
x10-6 mm/mm/°C |
3.0 |
25-1000°C |