COMPOSITE MATERIAL Russian patent published in 2003 - IPC

FIELD: chemical industry. SUBSTANCE: composite material comprises the following components, vol. %: diamond grains, 50-85; silicon, 2-49; silicon carbide, 1-48. Matrix of material consists of silicon carbide and silicon. The content of diamond grains of size above 40 mcm is 25%, not less, of total diamond amount in material. Heat conductivity coefficient of the composite material at the room temperature is above 300 W/m•K and thermal conductivity coefficient is less 1.6 •10^-4m²/s. Material exhibits also high hardness and wear resistance and can be used for preparing articles with the required forms with volume 10 mm³ being without additional mechanical treatment. Invention can be used in preparing heat- removal pipes and heat exchangers. EFFECT: valuable properties and indices of material. 4 ex