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Properties and applications of hafnium carbide

2018-11-01 15:10 View:
The hafnium carbide (HfC) crystal has a very high melting point (3890 ° C), is the highest melting point of the known single compound, and is a good material for the lining of the high melting point metal smelting crucible. Hafnium carbide has high hardness and can be used as an additive for cemented carbide. It has been widely used in cutting tools and molds. It also has high modulus of elasticity, good electrical and thermal conductivity, small coefficient of thermal expansion and good impact properties. The rocket nozzle material can be used in the nose cone of the rocket and has important applications in the aerospace field.
It also has important applications in nozzles, high temperature resistant linings, arcs or electrodes for electrolysis. Hafnium carbide has good solid phase stability and chemical resistance, and has great potential for use in high temperature environments. In addition, the evaporation of HfC film on the surface of carbon nanotube cathode can improve its field emission performance. The introduction of HfC in C/C composite can improve its ablation resistance. Hafnium carbide has many excellent physical and chemical properties, making it widely used in ultra-high temperature materials.

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