Silicon Nitride Bonded Silicon Carbide Brick
Silicon nitride combined with silicon carbide brick is made of high-purity SiC as aggregate, with the addition of silicon powder and other additives, using in-situ generation theory and high-temperature nitriding firing in a specialized kiln.
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High thermal conductivity
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Oxidation resistance
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Erosion resistance
Product Introduction
Silicon nitride combined with silicon carbide brick is made of high-purity SiC as aggregate, with the addition of silicon powder and other additives, using in-situ generation theory and high-temperature nitriding firing in a specialized kiln. Its structural characteristics are: SiC large particles are surrounded by a matrix, and the matrix part is composed of granular SiC and in-situ generated fibrous Si3N4. Si3N4 fibers are interwoven into a three-dimensional spatial network, surrounding SiC small particles and forming a strong mechanical bond with SiC large particles. The product has high thermal conductivity, oxidation resistance, and resistance to cryolite erosion, making it particularly suitable for high-power aluminum electrolysis cells.
Product Specifications
| Index | HWL-DGT | |
| SiC+Si3 N4 ≥ |
94 | |
| Apparent Porosity（%）≤ | 17 | |
| Bulk Density（g/cm3 ）≥ | 2.65 | |
| Cold Compressive Strength（MPa）≥ | 150 | |
| Modulus Of Rupture（MPa）≥ | 40 | |
| Hot Modulus Of Rupture（MPa）≥ | 1000℃ | 42 |
| 1400℃ | 45 | |
| Thermal Conductivity（1000℃)（W/m · K）≥ | 16 | |
- Grade:
- HWL-DGT
