What is the chemical stability of niobium carbide

What is NbC powder?

Niobium carbide is a green cubic crystal with a metal gloss coming from a sodium chloride-type cubic crystal system. Its melting factor is high, its firmness is high (microhardness is 235GPa, which is more difficult than diamond), and its chemical stability is excellent (it is secure at one 000 ~ 1 100 ℃ as well as quickly oxidizes to niobium pentoxide above one 100 ℃). Insoluble compounds are hot and cold hydrochloric acid, sulfuric acid, as well as nitric acid, and they are only soluble in the hot mixed option of hydrofluoric acid and nitric acid. Niobium carbide is very easy to melt in titanium carbide, zirconium carbide, tungsten carbide, and also various other substances, causing an isomorphic strong remedy, so it can be made use of to produce cermet, heat-resistant alloy, and sealed carbide. The cemented carbide with niobium carbide has fine-tuned grain and also enhanced all-around performance. The cutting tools made from it likewise have great thermal firmness, thermal shock resistance, and thermal oxidation resistance.

? As one of the raw products of composite ceramic products, composite ceramic products constructed from composite ceramic materials are usually used in wear-resistant components, reducing tools, electrodes, as well as various other fields because of their high solidity, high melting factor, excellent chemical security, and also electric conductivity.

Cemented carbide can not only be made use of as an inhibitor of cemented carbide grain development however additionally create the 3rd dispersed phase except WC as well as Co along with other carbides, which can significantly improve the thermal firmness, thermal shock resistance, warm pressing resistance and also oxidation resistance of concrete carbide. Niobium carbide can be used to prepare concrete carbide tool products with outstanding cutting performance due to its advantages of boosting the firmness and also improving the fracture strength of the alloy.

The difficult niobium carbide hard stage of the surfacing-covered electrode enters the structure of the appearing layer, which gives the welding layer a great wear-resistant skeletal system and greatly boosts the wear resistance. The wear resistance of this protected electrode surfacing wear-resistant alloy is 1.2 ~ 1.8 times higher than that of quenched No. 45 steel (HRC50) and 2.4 ~ 3.6 times higher than Fe-Cr-C-B wear-resistant alloy. At the same time, the hard-facing layer can be welded externally of the workpiece without preheating, and also the tiny splits produced externally can release the stress of the hard-facing layer. They will not spread right into the base material. D. Including a percentage of niobium carbide to the steel enhancing stage throughout steelmaking can accomplish the effects of precipitation fortifying and also great grain fortifying, hence enhancing the detailed mechanical properties of steel.

Aerospace elements are used as preparation materials for many aerospace tools parts, such as generator blades, gas rudders, blades, engine nozzle cellular linings, and structural members of atomic power plants.

Chemical residential or commercial properties of NbC powder

Niobium carbide is an environment-friendly cubic crystal with a metal luster belonging to a sodium chloride-type cubic crystal system. The relative thickness is 8.47, the lattice constant a= 0.447 nm, and the melting factor is 2300 ℃. The microhardness is > 235GPA (> 2400kg/mm2), which is harder than corundum. The flexible modulus is 338000N/mm2; the thermal development coefficient is 6.65×& times; 10-6/ K, the thermal conductivity is 14w/( m? K), and the generated heat of 1 chemical book is 40.7 kJ/mol. The specific warmth capacity is 36.8 J/( mol? K), as well as the resistivity is 35 μ ω& mu; & omega;? centimeters 。 Insoluble in cold and hot hydrochloric acid, sulfuric acid, and nitric acid, soluble in a warm combined service of hydrofluoric acid and also nitric acid. It is steady at 1000 ~ 1100 ℃ and quickly oxidizes to niobium pentoxide over 1100 ℃. Niobium carbide is very easy to thaw in titanium, zirconium carbide, tungsten carbide, and also various other substances, developing an isomorphic strong solution blend.

The cost of NbC powder

The market price of NbC powder is impacted by different elements. Presently, its market price is in the process of dynamic adjustment. If you require it, please contact us any time.

NbC powder supplier

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