CERAMIC COMPOSITE MATERIAL AND ARTICLE MADE THEREFROM Russian patent published in 2019 - IPC C04B35/577 C04B35/81 

FIELD: manufacturing technology.

SUBSTANCE: group of inventions relates to ceramic composite materials for making heat-loaded assemblies and parts with operating temperature of up to 1,500 °C in atmosphere of air and fuel combustion products. Disclosed is a ceramic composite material containing, wt%: 5–7 aluminum nitride AlN, 5–15 carbide-like silicon filaments SiC_w, 3–5 yttrium oxide Y₂O₃, and SiC as a base. Ceramic material is obtained by spark plasma sintering using induction heating.

EFFECT: reduced sintering temperature of ceramic composite material to 1,800–1,900 °C, increasing operating temperature up to 1,500 °C and heat resistance (change of mass in atmosphere of air and fuel combustion products at temperature of 1,500 °C for 500 hours of not more than 3 %) while maintaining strength characteristics at room temperature, as well as providing heat conductivity of material at level of 65–100 W/m⋅K.

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