Description of Bornitrid Composite Ceramic BN-SZ
BN is a synthetic ceramic produced by sintering BN powder at high temperature and pressure. It possesses properties that include resistance to high temperatures, effective thermal conductivity, ease of machining and adequate lubricity, thereby making BN a suitable material for technical applications.
The Bornitrid composite ceramic BN-SZ utilises silicon carbide and zirconium dioxide as binders. This formulation improves thermal shock resistance and wear resistance. The material is typically used as a separate ring in horizontal continuous casting and as a nozzle for applications involving an amorphous band. Given that these products exhibit a stable chemical composition, high thermal shock resistance and high corrosion resistance, they are frequently employed in contact with molten metals.
- Chemical stability
- Wear resistance
- High thermal shock resistance
Specifications of Bornitrid Composite Ceramic BN-SZ
Type |
BN-SZ |
Composition |
BN+SiC+ZrO2 |
Density |
g/cm³ |
2.3-3.0 |
25°C Resistivity |
Ω-cm |
>10¹² |
Maximum Operating Temperature (°C) |
Oxygen |
900 |
Inert Gas |
1700 |
High Vacuum |
1700 |
Flexural Strength |
MPa |
100 |
Compressive Strength |
MPa |
300 |
Thermal Expansion Coefficient 25-1000°C |
10⁻⁶/K |
4.0 |
Thermal Conductivity |
W/mK |
40 |
Applications of Bornitrid Composite Ceramic BN-SZ
- Used as a horizontal continuous casting separation ring
- Used as a metallurgical and powder metallurgical atomisation nozzle
- Used as a side sealing plate for thin strip continuous casting
- Commonly employed for contact with various molten metals
Packaging of Bornitrid Composite Ceramic BN-SZ
The BN-SZ is packaged in accordance with industry standards to prevent damage during storage and transport, thereby maintaining the product’s original quality.