Organomorphic composites are obtained by pyrolysis of heat‐treated molded polymer fibers followed by compacting the resulting Ipresskon® preform using carbon or silicon carbide. The structure of these materials features the most uniform volume distribution of a fiber and a matrix. The carbon–carbon (C/C) composite bushings made in this way show a very high compressive strength (up to 390 MPa) and a radial tensile strength (150 MPa). These characteristics ensure high performance of hot pressing molds for ceramics conventionally made of isostatic graphite characterized by much lesser tensile strength. This paper describes the microstructure and properties of C/C‐Ipresskon® composite that was used instead of graphite as a hot pressing mold die. The material structure was found to show a slight transformation after 22 cycles of high‐temperature thermal/mechanical loading at a temperature up to 2000°C and 30–35 MPa.
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