Product Name: | Silicon Carbide Ceramics | Application: | Structure Ceramic, Industrial Equipment |
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Custom Service: | Acceptable | Quality Control: | 100% Inspection |
Drawing Format: | 2D/(PDF/CAD)3D(IGES/STEP) | Advantage: | High Temp Resistant |
Size: | Customized Size | ||
High Light: | SiC Silicon Carbide Ceramics,Custom Processing Silicon Carbide Ceramics,High Temp Resistant black silicon carbide |
Custom Processing Sic Silicon Carbide Graphite Crucible High Temp Resistant
Silicon Carbide (SiC) Crucibles are high quality melting crucibles. They can be used at temperatures up to 1600C (3000oF) and are suitable for melting and refining precious metals, base metals, and other products.
It is helpful to preheat crucibles to drive of any moisture that may have been pulled out of the atmosphere during manufacturing, storage, shipping, and cooling from the previous firing. And for high value fires (like refining), it is good insurance.
Coating the inside of the crucible on the other hand probably does not help. If you want to coat the inside of the crucible with borax it probably will not hurt anything. But, the borax is a low melting temperature component so the coating will not form much of a barrier after you start heating things up. And, it may "cost" you one of the fires.
Item |
Pressureless sintering
|
Reaction sintering
|
Density (g/cm³)
|
3.10-3.15
|
3.03-3.08 |
Hardness (HRA)
|
≥92 | ≥90 |
Compressive strength (MPa)
|
≥2200 | ≥2000 |
Flexural strength (MPa)
|
≥400
|
≥350 |
Silicon carbide content (%)
|
≥98 | ≥90 |
Modulus of Elasticity (GPa)
|
≥400 | ≥360 |
Thermal conductivity (W/m·K)
|
100-120 | 50-100 |
Silicon Nitride Ceramics (Si3N4)
Alumina Ceramics (Al2O3)
Zirconia Ceramics (ZrO2)
Aluminum Nitride Ceramics(AIN)
Microporous Ceramic Plate
Boron Nitride(h-BN)