Zirconium carbide is dark gray metallic cubic crystal. Crispy. Melting point is 3540 ℃. The boiling point of 5100 ℃. The apparent density of 6.70 g/cm3. Mohs hardness 8 ~ 9. Insoluble in cold water and hydrochloric acid. Soluble in nitric acid or hydrogen peroxide solution of hydrofluoric acid and hot concentrated sulfuric acid. Generate zirconium tetrachloride reaction with chlorine gas under high temperature. 700 ℃ in air combustion generated zirconia. Do not react with water.
Zirconium carbide is a kind of high hardness and excellent high temperature refractory high melting point materials. Used as a raw material of solid propellant rocket engine. Used in the production of alloy steel. Is a metal zirconium and zirconium tetrachloride raw material production, and [1] promising fine ceramic materials.
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