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Silicon nitride-bonded silicon carbide (NBSC) is well-known for its excellent wear resistance and oxidation resistance, high thermal conductivity, and thermal shock resistance, even at high temperatures. Nitride-bonded silicon carbide materials also possesses ideal refractory and chemical properties. NBSC resists wetting by non-ferrous metals. It is a semiconductor at high temperatures.
| >Chemical Composition |
Sic |
75% |
|
Si3N4 |
≥23% |
|
|
Free Si |
0% |
|
|
Bulk density (g/cm3) |
2.70～2.80 |
|
|
Apparent porosity (%) |
12～15 |
|
|
Bend strength at 20 oC (MPa) |
180～190 |
|
|
Bend strength at 1200 oC (MPa) |
207 |
|
|
Bend strength at 1350 oC (MPa) |
210 |
|
|
Compressive strength at 20 oC (MPa) |
580 |
|
|
Thermal conductivity at 1200 oC (w/m.k) |
19.6 |
|
|
Thermal expansion coefficient at1200 oC (x 10-6/oC) |
4.70 |
|
|
Thermal shock resistance |
Excellent |
|
|
Max. temperature (oC) |
1600 |
|
-NBSC is widely used in mining, petrochemical, red metal, monolithic cyclone liners, etc.
-NBSCbricks are applied in a range of process furnaces and kiln furniture.
ACM’s silicon nitride-bonded silicon carbide refractory materials are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
