Importance

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Abstract

A process for making open-celled silicon carbide inserts (20) that allow metal infiltration to create metal-matrix composite part (100, 300) used for rubbing/wear components, such as an open-celled ceramic ring. The open-celled ceramic insert (20) is infiltrated by cast iron, and produces no negative effects to the iron casting process or the final metal-matrix composite product (100, 300) such as casting porosity or gas build-up inside the mold. Inserts (20) constructed in accordance with the invention enable manipulation and control over the density and weight of final metal-matrix composite products (100, 300). It is an advantageous characteristic of such inserts (20) that they enable manipulation and control over the dampening characteristics of final metal-matrix composite products (100, 300).

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First Claim