Silicon carbide (SiC) foam from Goodfellow (Coraopolis, PA) provides the exceptional hardness, high-temperature durability and performance of solid silicon carbide, but in a lightweight foam structure. The matrix of cells and ligaments of silicon carbide foam is completely repeatable, regular and uniform throughout the material, yielding a rigid, highly porous and permeable structure with a controlled density of metal per unit volume. Characteristics of SiC foam include: exceptional hardness (Mohs 9) and resistance to wear and corrosion; can withstand temperatures up to 2200°C; high thermal and electrical conductivity; and low thermal expansion.

Silicon carbide foam is available from stock in a standard pore size of 24 pores per centimeter (60 ppi), with a bulk density of 0.29 g.cm-3, a porosity of 91% and a thickness of 10mm.

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Aerospace & Defense Technology Magazine

This article first appeared in the April, 2015 issue of Aerospace & Defense Technology Magazine.

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