Molybdenum silicide
(MoSi2) is a widely used electric heating element material, which has the characteristics of high temperature oxidation resistance, excellent corrosion resistance and high melting point. Its oxidation resistance is due to the formation of an impermeable glass film on the heated surface, which is not damaged by oxygen, nitrogen, carbon monoxide and sulfur dioxide. Molybdenum disilicide can be heated for two or three years at 1700-2000 ℃. However, the poor mechanical properties affect the application of molybdenum silicide. If SiC is added into molybdenum silicide to form a composite material, this material will disperse silicon carbide into the matrix of molybdenum disilicide to form a bimetallic compound containing molybdenum and silicon atoms. Its high temperature strength is 8 times higher than that of molybdenum disilicide monomer, which makes its application prospect very popular.
