Ultra‑high‑temperature ceramic composites

Ultra-high-temperature ceramic composites are candidate thermal protection materials for high‑altitude, high‑speed aircraft, rocket engines, and other advanced equipment.

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Ultra-high-temperature ceramic matrix composites

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Ultra-High Temperature Ceramic C/C–SiC–ZrC–HfC Composites are ultra-high temperature ceramic matrix composites (UHTC-MMCs) that use carbon fibers as the reinforcement and a composite ceramic matrix composed of silicon carbide, zirconium carbide, and hafnium carbide. By introducing ZrC and HfC ceramic phases into C/C–SiC composites, the aim is to address issues such as oxidation, ablation, and mechanical failure under extreme high‑temperature conditions. These materials can withstand short‑term operating temperatures as high as 3000°C, with long‑term service temperatures (in oxygen‑bearing environments) ranging from approximately 2000–2700°C—far exceeding the 1650°C upper limit of C/C–SiC—and are therefore promising thermal protection materials for advanced systems such as hypersonic vehicles and rocket engines.

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