Beta Silicon Nitride Powder
Grades are available from coarse powder to super fine powder with average particle size sub-micron.
Table. Main Powder Characteristics
| Items/Grade |
SN-F1 |
SN-F2 |
SN-E |
| alpha - Conversion rate (%) |
6.1 |
6.7 |
 20 |
| Si (%) |
59 |
59 |
59 |
| N (%) |
39 |
39 |
39 |
| Average Particle Size* (µm) |
5.2 |
25.0*** |
5.0 |
| Specific Surface Area** (m2/g) |
2.7 |
1.2 |
3.2 |
| Fe (%) |
0.2 |
0.2 |
0.7 |
| Al (%) |
0.2 |
0.2 |
0.8 |
| Ca (%) |
0.2 |
0.2 |
0.2 |
| Mg (%) |
<0.01 |
<0.01 |
-- |
| Free-Si (%) |
0.2 |
0.2 |
1.0 |
| Specific Gravity |
3.18 |
| Formula |
Si3N4 |
| Thermal Stability |
Sublimates at about 1,900°C |
| External Appearance |
Gray fine powder |
Values in the table are representative values and not standard values.
*Average Particle Size:
Measured data by LASER diffraction, dispersion method (MicroTrak)
**Specific Surface Area:
Measured data by B.E.T. method
*** CILAS Method (MicroTrak)
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