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The pressureless sintered silicon carbide (SIC) saggers can adopt three different forming processes depending on product specifications: isostatic pressing, slip casting and dry pressing. The formed green bodies undergo preliminary processing before being sintered at high temperatures in a pressureless vacuum sintering furnace.
Saggers are primarily used in kiln heat treatment processes, providing product transportation and protection during high-temperature firing.
Application Fields: >Electronics & Semiconductor; >Automotive; >Glass & Photovoltaic; >Lithium Battery Cathode Powder Production; >other industrial sectors' sintering processes.
>1.High Mechanical Strength – Ensures durability under high loads.
>2.Exceptional High-Temperature Resistance – Withstands extreme heat without degradation.
>3.Superior Thermal Stability– Maintains structural integrity under prolonged thermal cycling.
>4.Excellent Corrosion Resistance– Resists chemical erosion in harsh environments.
>5.Customizable Designs– Tailored to meet specific application requirements.
>6.Extended Service Life– Delivers stable and long-lasting performance,reducing replacement frequency.
Physical properties | Unit | SSiC | |
Composition:SiC | Vol% | ≥98 | |
Density 20 ℃ | g/cm3 | ≥3.06 | |
Open Porosity | Vol% | ≈0 | |
Hardness | Rockwell Hardness 45N | R45N | 93 |
Vickers Hardness HV1 | kg/mm2 | 2350 | |
Flexural Strength | 20°C | MPa | 320-400 |
1300°C | MPa | 300-400 | |
Coficient of Thermal Expansion | 10-6K-1 | 4.0 | |
hermal Conductivity | 20°C | Wm-1K-1 | 196 |
1200°C | Wm-1K-1 | 60 | |
Modulus of Elasticity @ RT | GPa | 410 | |
Thermal shock resistance | ℃ | >350 | |
Max. Service Temp (air) | ℃ | 1650 |
>1.Dimensional Customization:Available in round & square configurations; Base options: flat, semi-flat, or spherical; Tailored sizing per customer specifications
>2.>Structural Modifications: Flange additions; Precision drilling; Other custom structures
Property | SSiC | Alumina (Al₂O₃) | Graphite | Spinel | Mullite |
Max Temp (°C) | 1600℃ | 1800℃ | 3000℃ | 1700℃ | 1500℃ |
Thermal Shock | ★★★★★ | ★★☆☆☆ | ★★★☆☆ | ★★★☆☆ | ★★★☆☆ |
Oxidation Res | ★★★☆☆ | ★★★★★ | ★☆☆☆☆ | ★★★★☆ | ★★★☆☆ |
Acid Res | ★★★★☆ | ★★★☆☆ | ★★★★★ | ★★☆☆☆ | ★★★☆☆ |
Alkali Res | ★★★☆☆ | ★★★★☆ | ★☆☆☆☆ | ★★★★★ | ★★★☆☆ |
Pressureless Sintered SiC (SSiC): Superior overall performance for high-temperature, corrosive, and high-stress environments
Alumina(Al₂O₃) : High-temperature resistance up to 1800°C, but poor thermal shock resistance
Reaction-Bonded SiC (RB-SiC): Cost-effective alternative, but lower density and corrosion resistance vs. SSiC
Priority Choice(SSiC): Ideal for Li-ion battery sintering, semiconductor wafers, metal purification
Alternative solution(RB-SiC): Cost-effective solution for temperatures below 1380°C