Recrystallized Silicon Carbide (R-SiC) Saggers & Crucibles
Recrystallized Silicon Carbide (R-SiC) Saggers & Crucibles
Our R-SiC saggers and crucibles are premium high-purity ceramic vessels engineered for high-temperature calcination, melting, and material processing applications. Manufactured through a specialized recrystallization process that yields a pure (>99%) SiC structure with directly bonded crystals and no secondary phases, these products deliver exceptional thermal performance, chemical stability, and contamination-free operation in the most demanding environments.
Key Properties
| Property | Value |
|---|---|
| Max Service Temperature | 1,650°C (continuous) |
| Bulk Density | ≥ 2.65 g/cm³ |
| Apparent Porosity | ≤ 17% |
| Flexural Strength (RT) | ≥ 100 MPa |
| Flexural Strength (1,400°C) | ≥ 80 MPa |
| Thermal Conductivity (1,200°C) | ≥ 30 W/m·K |
| CTE (RT–1,500°C) | ~4.5 × 10⁻⁶/°C |
| Purity | > 99% SiC |
| Bonding Type | Recrystallized SiC–SiC direct bond |
Key Features & Benefits
1. Ultra-High Purity (> 99% SiC)
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No oxide or metallic binders — eliminates product contamination
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Ideal for high-purity material processing and sensitive applications
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Maintains material integrity during calcination and melting processes
2. Outstanding Thermal Shock Resistance
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Withstands rapid heating and cooling cycles without cracking
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Excellent thermal conductivity ensures uniform heat distribution
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Minimizes thermal stress during start-up and shut-down
3. Exceptional High-Temperature Performance
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Continuous operation at 1,650°C
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Superior creep resistance maintains shape and dimensional stability
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Low thermal expansion reduces deformation risk
4. Excellent Chemical Stability
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Inert to most acids, alkalis, slags, and molten materials
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Resistant to oxidation in high-temperature atmospheres
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Suitable for aggressive and corrosive environments
5. Extended Service Life
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3–5× longer life compared to conventional saggers/crucibles
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Reduces downtime and replacement frequency
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Lowers total cost of ownership
Applications by Industry
| Industry | Applications |
|---|---|
| Battery Materials | Cathode (NCM, LFP) and anode material calcination |
| Ceramics | Powder calcination, pigment firing, ceramic processing |
| Metallurgy | Non-ferrous metal melting (Al, Cu, Zn, precious metals) |
| Glass | Specialty glass melting and frit production |
| Electronics | Semiconductor material processing, substrate firing |
| Laboratory & R&D | High-temperature experiments and pilot production |