Tantalum Carbide is black or dark brown metallic powder, cubic crystal system, hard. Melting point 3880℃, boiling point 5500℃, relative density 13.9, hardness 9 ~ 10. Soluble in mixed acids of nitric and hydrofluoric acids, insoluble in water and all single acids. At room temperature and pressure, TaC has a simple NaCl crystal structure and can accommodate a large number of vacant Chemicalbook potentials in the carbon lattice without causing phase transition. The highest values of TaC hardness and fracture toughness can reach (20±0.5)GPa and (12.7±0.7) mpa1/2, respectively. Stable chemical properties, resistance to general acid base, except hydrofluoric acid. It is converted to tantalum pentoxide by heating in air. It can be fused with potassium pyrosulfate. This information has been edited by Hong Ding of Chemicalbook.
1. It is widely used as an additive in cemented carbide, whose main function is to improve the high-temperature strength of cemented carbide and inhibit the growth of tungsten carbide particles.
2. In cutting tools, as a hard coating to increase the chemical resistance and wear resistance of the base metal.
3. In the military, as a coating for jet engine turbine blades and fire Chemicalbook arrow nozzles, it can significantly improve its ablative performance and extend its service life.
4. Because of its good conductivity. As a result, it can be used in electrode materials and can also be cut into complex shapes using edM wires.
5. As the second phase particle reinforced metal matrix composite has been widely used in aerospace, metallurgy, building materials, electric power, hydropower, mining and other fields.
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