Beta silicon carbide extrudates
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The SICAT β-SiC extrudates present intermediate surface areas (up to 35m2/g), with pore sizes in the meso and macroporous ranges.
Pore volumes (up to 0.7cm3/g) and pore size distributions (mono or bimodal) can be customized over a broad span to meet process specifications.
Further developments will include enhanced macroporosity with significant pore volumes in pore diameters of 10 to 100 microns.
Due to SICAT's unique " self bonding beta-SiC " process, all products show outstanding mechanical strength.
Shapes include cylinder, as well as rings, trilobes, tubes.
Diameters can be tailored, for example 1 to 5mm cylinders.
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Pore size distribution
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Beta-SiC extrudates
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Beta-SiC rings
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Main characteristics
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| Shape |
Cylindrical |
Rings |
| Dimension, mm |
Ø : 1, 2, 3, 4, 5 |
Ø: 8/5 |
| BET surface area, m2/g |
30 |
30 |
| Total pore volume (Hg), cm3/g |
0.4 to 0.7 |
0.5 to 0.7 |
Mechanical strength, N/mm
Ø: 3mm, cylinder, UHP, 0.7cm3/g
Ø: 2mm, cylinder, UHP, 0.7cm3/g
Ø: 3mm, cylinder, HP, 0.55cm3/g |
25
20
28 |
30-35 |
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Product's grades
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2 grades of pore size distribution : HP and UHP |
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HP : High Porosity
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UHP : Ultra high Porosity
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0,5cm3/g |
0.6cm3/g |
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| 2 grades of purity : MG and HQ |
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2 grades of oxidation state : LO and HO |
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MG :
Metallurgical Grade |
HQ :
High Quality |
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LO : Low Oxidation |
HO : High Oxidation |
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Max. content, %wt |
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State |
Raw β-SiC |
Post oxidized β-SiC |
| Fe |
0.42 |
0.04 |
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Free C
%wt |
3 |
0 |
| Al |
0.14 |
0.08 |
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Si oxides
%wt |
<0.5 |
up to 8 |
| Ca |
0.14 |
0.01 |
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| Total of others |
<0.04 |
<0.04 |
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