Sintered Silicon Carbide
Sintered SiC
CALSIC S
That’s our tradename for our Sintered Alpha Silicon Carbide.
CALSIC S is a single phase material containing greater than 99% silicon carbide. Sintered SiC is a self-bonded material containing a sintering aid (typically Boron) of less than 1% by weight. CALSIC S is a fine-grained material with a typical grain size of < 5 microns.
Outstanding corrosion resistance
The lack of binder or secondary phase makes our sintered silicon carbide nearly universally corrosion resistant.
Excellent wear & abrasion resistance
Due to the high hardness of CALSIC S (2800 Knoop), it is extremely resistant to wear and abrasion.
High temperature strength & creep resistance
CALSIC S retains nearly full strength to temperatures approaching 1750°C. Due to its high modulus, our sintered silicon carbide does not creep under load.
Superior thermal shock
CALSIC S offers very good thermal shock resistance thanks to its high thermal conductivity (125W/mK).
Sintered Silicon Carbide Properties
Sintered silicon carbide (SiC) boasts hardness rivaled only by diamond. Our CALSIC S is extremely resistant to wear, abrasion, thermal and shock – making it great for a variety of applications and products. Learn more about sintered silicon carbide properties below.
| Composition | Grain Size (μm) | Density (g/cc) | Hardness (Knoop) (GPa) | Modulus of Rupture (MPa) | Tensile Strength (MPa) | Compressive Strength (MPa) | Elastic Modulus (GPa) | Coefficient of Thermal Expansion (1 x 10-6 in/in °C) | Thermal Conductivity (W/mK) | Poisson’s Ratio |
|---|---|---|---|---|---|---|---|---|---|---|
| SiC | 44661 | 3.15 | 2800 | 380 | 250 | 3900 | 410 | 4 | 125 | 0.16 |