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Silit®SK and Silit®SKD are reaction-bonded, silicon infiltrated silicon carbide (SiSiC) materials. The composition of the green body includes some carbon and the high temperature firing occurs in the presence of an excess of Si.
As the molten Si diffuses through the body, it reacts with carbon to form a beta SiC bond and the remaining open porosity is filled with the excess silicon. According to the shape of the item to be delivered, the green body may be formed either by extrusion (Silit®SK)or by slip casting (Silit®SKD).
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| Saint-Gobain Industrial Ceramics' current SiSiC technology results from the synergistic integration of the best manufacturing practices and application know how from Cesiwid (Silit®SK), Norton (Crystar®RB), and AnnaWerk (
AnnaNoxCD). |
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Silit®SK |
Silit®SKD |
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Chemical analysis
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81 % SiC
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88 % SiC
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Maximum use temperature
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1350 °C
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1380 °C
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Density
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3.00 |
3.05 |
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Open porosity
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0 |
0 |
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Bending strength (at 1200°C)
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260 MPa |
250 MPa |
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Coefficient of thermal expansion
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4.5 x 10 -6 / K |
4.1 x 10 -6 / K |
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Thermal conductivity (at 1200°C)
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40 W / mK |
35 W / mK |
Please contact us for more information regarding material properties and discussion of your specific application and service conditions !