Tags: Chemical Compound, Chemical Substance.
Hafnium carbide (HfC) is a chemical compound of hafnium and carbon. With a melting point of about 3900 °C it is one of the most refractory binary compounds known. However it has a low oxidation resistance with the oxidation starting at temperatures as low as 430 °C.Hafnium carbide is usually carbon deficient and therefore its composition is often expressed as HfCx (x = 0.5 to 1.0).
