CoolingCustom-Shaped Reaction-Bonded Silicon Carbide (RBSiC/SiSiC) Sagger: High-Performance Refractory Solutions for Extreme Industrial Environments
Description:
Reaction-Bonded Silicon Carbide (RBSC) Sagger is a high-performance refractory container fabricated from high-purity silicon carbide (SiC) powder via reaction-bonded sintering technology. This process incorporates silicon (Si) as a binder, forming a dense microstructure under high temperatures while controlling shrinkage (≤3%) to ensure high dimensional accuracy and minimal deformation. The sagger typically features a square or circular shape with a smooth surface and can be customized into specialized geometries (e.g., U-shaped, arched, or perforated designs) to meet extreme industrial requirements such as high temperatures, strong corrosion, and rapid thermal cycling.
The physical properties of reaction sintered silicon carbide ceramics products:
| Physical properties |
Unit |
SiSiC |
| Density |
g/cm3 |
≥3.0 |
| Open Porosity |
Vol% |
0.2 |
| Vickers Hardness HV1 |
kg/mm2 |
≥2100 |
| Flexural Strength |
20°C |
MPa |
250 |
| 1200°C |
MPa |
280 |
| Coficient of Thermal Expansion |
10-6K-1 |
4.5 |
| Thermal Conductivity(1200°C) |
Wm-1K-1 |
45 |
| Modulus of Elasticity @ RT |
GPa |
330 |
| Max. Temperature of Application |
℃ |
1380 |
Key Features:
- Exceptional High-Temperature Resistance
- Operates continuously at temperatures up to 1,380°C, surpassing conventional graphite (≤1,200°C) and alumina-mullite (≤1,300°C) alternatives.
- Maintains structural integrity without softening, deformation, or cracking under prolonged heat exposure.
- Superior Thermal Shock Resistance
- Low coefficient of thermal expansion (1/6–1/7 of graphite), enabling resistance to rapid heating/cooling cycles (e.g., quenching from 1,300°C to room temperature) without spalling or cracking.
- Outstanding Corrosion Resistance
- Highly resistant to strong acids (e.g., sulfuric, nitric, hydrochloric acid) and alkalis (e.g., sodium hydroxide), extending service life 3–5× longer than graphite crucibles and 8–10× longer than alumina-mullite saggars.
- High Thermal Conductivity & Uniform Heat Distribution
- Thermal conductivity of 45 W/m·K ensures rapid heat transfer, reducing energy consumption by >20% while promoting uniform product sintering and improving yield rates.
- Lightweight yet Robust
- High bulk density and strength combined with lower weight than traditional refractories, facilitating easy handling and integration into automated production lines.
- Customizable Design Flexibility
- Supports tailored shapes (e.g., slots, grooves, or porous structures) for specialized processes. Surface treatments (e.g., polishing, coatings) enhance anti-sticking or corrosion resistance.
Applications:
1.Ceramics Industry
2.Metallurgical Sector
3.Chemical Processing
4.New Energy Technologies
5.Electronics & Magnetic Materials
6.Glass & Aerospace
