Silicon Nitride Powder
Short Description:
Power for silicon nitride (Si3N4) is light, hard, and has low thermal expansion coefficient. Silicon Nitride Powder has high mechanical strength, fracture toughness, and it is resistant to deformation at room temperature as well as at elevated temperature. Si3N4 differs from other ceramics because it doesn’t melt, but, between 1800 and 1900 °C, it decomposes and sublimates into Si and N. However, stabilized forms can be made. Engine parts: valves, pistons, etc. Gas turbines Diesel engin...
Product Detail
Product Tags
Power for silicon nitride (Si3N4) is light, hard, and has low thermal expansion coefficient. Silicon Nitride Powder has high mechanical strength, fracture toughness, and it is resistant to deformation at room temperature as well as at elevated temperature.
Si3N4 differs from other ceramics because it doesn’t melt, but, between 1800 and 1900 °C, it decomposes and sublimates into Si and N. However, stabilized forms can be made.
Engine parts: valves, pistons, etc. Gas turbines
Diesel engines
Cutting tools
Bearings
High strength over a wide temperature range
High fracture toughness
High hardness
Outstanding wear resistance, both impingement and frictional modes
Good chemical resistance
Papermaking machine foils
Wear parts
|
Analyte |
Result % |
|||
|
|
MKL |
MKH |
||
|
Typical |
Max/Min |
Typical |
Max/Min |
|
|
Si3N4 |
98.3 |
99.6% |
||
|
Fe |
0.25 |
0.19-0.30 |
0.04 |
0.03-0.06 |
|
Al |
0.10 |
0.06-0.12 |
0.05 |
0.03-0.08 |
|
Ca |
0.02 |
0.01-0.05 |
0.01 |
<0.02 |
|
Halides |
<0.002 |
<0.002 |
<0.002 |
<0.002 |
|
C |
0.2 |
<0.5 |
0.2 |
<0.5 |
|
O |
0.7-1.5 |
0.7-1.5 |
0.7-1.5 |
0.7-1.5 |
|
Si, free |
0.1 |
<0.2 |
0.1 |
<0.2 |
|
a- Si3N4 |
93 |
90-95 |
93 |
90-95 |
|
BET(m2/g) |
（L）6-8 |
6-12 |
（L）6-8 |
6-12 |
|
D50(μm) |
0.4-1.0 |
0.4-1.0 |
0.4-1.0 |
0.4-1.0 |
Silicon Nitride Powder (Si3N4) Applications: This product is mainly used for: 1) manufacturing structure device: such as metallurgy, chemical industry, machinery, aviation, aerospace and energy industries to use the ball and roller bearing, sliding bearing, sleeve, valve, and a wear-resistant, high temperature, corrosion-resistant structural components required.
Part of Silicon Nitride Powder Application
