Purebide Siliconised Graphite for Bearings and Seal Faces

Morgan Advanced Materials offers a range of siliconised graphite marketed under our Purebide® brand. This material serves as the genesis of future silicon carbide/graphite composites, such as our world-beating PGS100 material, along with PGS110 and PGS3.

Our Purebide® range of siliconised graphite materials are made using a chemical vapour reaction process which converts exposed areas of an electrographite to silicon carbide. This produces a range of materials that exhibit excellent properties including a hardness approaching monolithic silicon carbide, with a modulus closer to that of electrographite. These materials benefit from using this process as the lack of size change during the reaction process enables the creation of complex configurations through traditional turning and grinding approaches whose surfaces are then converted to silicon carbide in a cost effective manner.

We produce grades PE7130 (for bearings) and PE8148 (for seal faces). The siliconised surface provides increased abrasion resistance from metallic options. Additionally, as there is some residual graphite remaining within the silicon carbide matrix, the resulting topography enables better lubrication to the interface, extending load capabilities over metallic based materials.

The above properties make these materials a great selection for industrial applications requiring abrasion resistance and lower modulus than a monolithic SiC.

Our materials engineers have a wide range of knowledge about products and applications suited to this material, so if you would like to know how this can benefit your product, contact us today.

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