Sintered Silicon Carbide (SSiC) is produced using very fine silicon carbide powder containing sintering additives. It is processed using forming methods typical for other ceramics and sintered at 2,200°C in an inert gas atmosphere.

Sintered Silicon Carbide offers a high-performance seal face material that has proven successful in such diverse pumping applications as chemical processing, refining, mining and pulp and paper processing. The material provides superior corrosion and abrasion resistance; shock resistance; and low sliding friction against a wide range of mating materials.

Commonly Silicon Carbide are available in Alfa Sintered (SSIC) Grade and Reaction bonded (Rbsic) Grade as per following specification.

Applications:

• Centrifugal pumps.


• Submersible pumps.


• Compressors.


• Mixers and steam joints.


• Gear pumps.


• Propulsion shaft sealing.


• High temperature and pressure applications.


• Abrasive and aggressive fluid applications.


• Mechanical seals for circulating pumps with limited dry running capability.


• Bearings for circulating pumps.


• Speciality pumps for handling corrosive and abrasive fluids.


• Bearings for electric water pumps used in electric and/or hybrid cars.

Applications:

• Superior wear resistance with low friction.


• High-temperature capabilities.


• Wide-ranging compatibility with other materials.


• High thermal conductivity.


• Outstanding thermal shock resistance.


• Superior corrosion resistance, especially in alkali environments.



Product Specification

		RB-SIC	SSIC
Purity	%	>90	>98
Density	g/cm2	>2.98	>3.10
Haedness Vickers 1Kg	Kg/mm2	2200	2400
Moduls Of Elastcity	GPa	390	420
Fracture Thoughness	MPa m1/2	4.3	4.5
Fracture Strength (MOR)	MPa	420	450
Compressive Strength	MPa	2500	3200
Thermal Expansion (CTE)	10-3/K	4.3	4.4
Thermal Conductivity	W/(m-k)	120	140