Sintered Silicon Carbide

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 exhibiting:

Outstanding corrosion resistance

The lack of binder or secondary phase makes our sintered silicon carbide nearly universally corrosion resistant.

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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).

“Material Properties of Sintered Silicon Carbide” - R.G. Munro