They are widely used as kiln batts, shed board, slide push board, sagger, work holders and tuyere combined bricks.
They have below characters:
Good chemical stability, high bend strength, good wear resistance, good alkali and acid corrosion resitance, low linear expansion, high thermal conductivity in high temperature between 1200-1550 celsius degree in pusher-type furnace, batch furnace, roller-hearth furnace, etc.
| Brand Item |
Si3N4- SiC |
Sialon- SiC |
Sialon-Al2O3 |
| DT |
ST |
SG |
| SiC % ≥ |
71 |
70 |
|
| Si3N4 % ≥ |
20 |
|
|
| Al2O3 % ≥ |
|
|
78 |
| Sialon % ≥ |
|
20 |
18 |
| Apparent Porosity % ≤ |
18 |
16 |
16 |
| Bulk Density( g/cm3) ≥ |
2.65 |
2.65 |
3.1 |
| Cold Crushing Strength (Mpa) ≥ |
150 |
150 |
120 |
| Modulus of Rupture (Mpa) ≥ |
30 |
35 |
12 |
| High Modulus of Rupture ≥ 1400º C× 0.5h (Mpa) |
40 |
42 |
20 |
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