SicoNide®
SicoNide® is a silicon nitride (Si3N4) powder with a broad particle size distribution and tailored surface area, thus allowing easy processing and sintering of ceramic components.
SICONIDE
SILICON NITRIDE POWDER
Chemical Properties
Purity ( typical analysis ) |
Element |
Weight % |
|
SicoNide S |
SicoNide P |
| |
Typical |
Max / min |
Typical |
Max / min |
Si3N4 |
98.3 |
|
98.6 % |
|
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 |
O2 |
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) |
6 - 12 |
6 - 12 |
6 - 12 |
6 - 12 |
D50 (µm) |
0.4 - 1.0 |
0.4 - 1.0 |
0.4 - 1.0 |
0.4 - 1.0 |
Physical Properties
The physical parameters
- particle size distribution
- specific surface area
- particle morphology
are determined by control of the nitridation variables and post-synthesis powder processing e.g milling, classification and other treatments. Standard B.E.T. specific surface areas of the micronsized SICONIDE area at the 6 m2/g and 12 m2/g levels. |
