Sintered Silicon Carbide
Sintered SiC
CALSIC S
CALSIC S is Calix’s premium, single-phase sintered silicon carbide. It is a self-bonded, fine-grained material (< 5µm typical grain size) containing greater than 99% SiC and a minor boron sintering aid (< 1% by weight). Because it features no binder or secondary phase, it delivers extreme performance in harsh environments.
Sintered Silicon Carbide characteristics
corrosion resistance
The absence of a binder phase ensures almost complete chemical inertness in corrosive environments.
wear & abbrasion resistance
Exceptional material hardness provides maximum protection against mechanical wear and abrasive sliding.
temperature strength & creep resistance
Retains nearly full structural strength at temperatures approaching 1750°C. Due to a high elastic modulus, CALSIC S will not creep under heavy loads.
thermal shock
High thermal conductivity (125W/mK) allows the material to withstand rapid temperature fluctuations without fracturing.
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.
All properties are at room temperature (20°C) unless otherwise stated.
Sintered Silicon Carbide pricing structure
Sintered Silicon Carbide Products are priced based on the following:
- Forming Method – the method used to produce the near net shape component
- Machining Requirements – the type of tooling required and amount of machining necessary to achieve the final product
- Component Details – the specifics of the end user’s components such as tolerance requirements
- Quantity of Pieces
sintered silicon carbide
Frequently Asked Questions
Sintered silicon carbide is resistant to many environmental factors, including corrosion, wear, and abrasion, creep, and thermal shock, and can retain full strength at extremely high temperatures.
Dr. E.G. Acheson created silicon carbide while trying to create artificial diamonds. He then decided to manufacture the material and founded the Carborundum Company in late 1890’s in Niagara Falls.
Sintered silicon carbide can be made in any of the following processes: microwave sintering, reaction sintering, recrystallization sintering, hot press sintering, and pressureless sintering.
A wide array of components can be manufactured with sintered silicon carbide material. The material can be formed in several ways; dry press, isopressing, extrusion and now 3d printing, which allows for the manufacturing of ceramic wear tiles, protection tubes, complex machined near net shapes components, and 3D printed items such as heat exchangers, filters.
Sintered silicon carbide and reaction-bonded silicon carbide are manufactured differently and have different properties. SiC is made without a bonding phase by pressureless sintering fine SiC powder at high temperatures. Reaction bonded SiC is made by infiltrating porous SiC with molten silicon.
SiC is harder and more wear resistant, withstands higher temperatures and corrosion but is more brittle than RBSiC.
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