What is the chemical stability of niobium carbide

What is NbC powder?

Niobium carbide is a green cubic crystal with a metal gloss belonging to a salt chloride-type cubic crystal system. Its melting point is high, its solidity is high (microhardness is 235GPa, which is tougher than corundum), and its chemical stability is great (it is steady at one 000 ~ 1 100 ℃ as well as swiftly oxidizes to niobium pentoxide above one 100 ℃). Insoluble materials are cold and hot hydrochloric acid, sulfuric acid, and also nitric acid, as well as they are just soluble in the hot blended remedy of hydrofluoric acid and nitric acid. Niobium carbide is very easy to melt in titanium carbide, zirconium carbide, tungsten carbide, and also other compounds, causing an isomorphic solid remedy, so it can be used to produce cermet, heat-resistant alloy, as well as cemented carbide. The sealed carbide with niobium carbide has fine-tuned grain and improved all-around performance. The cutting devices constructed from it likewise have great thermal hardness, thermal shock resistance, as well as thermal oxidation resistance.

? As one of the raw products of composite ceramic products, composite ceramic materials constructed from composite ceramic materials are usually used in wear-resistant parts, reducing devices, electrodes, as well as other fields as a result of their high firmness, high melting factor, exceptional chemical stability, and also electric conductivity.

Sealed carbide can not only be used as a prevention of cemented carbide grain development but additionally develop the 3rd spread stage except WC and Carbon monoxide along with other carbides, which can substantially enhance the thermal solidity, thermal shock resistance, hot pressing resistance as well as oxidation resistance of cemented carbide. Niobium carbide can be utilized to prepare concrete carbide tool materials with exceptional cutting performance since of its benefits of increasing the solidity as well as boosting the fracture sturdiness of the alloy.

The hard niobium carbide hard phase of the surfacing-covered electrode gets in the structure of the emerging layer, which offers the welding layer an excellent wear-resistant skeleton as well as greatly enhances the wear resistance. The wear resistance of this protected electrode surfacing wear-resistant alloy is 1.2 ~ 1.8 times more than that of quenched No. 45 steel (HRC50) and 2.4 ~ 3.6 times more than Fe-Cr-C-B wear-resistant alloy. At the exact same time, the hard-facing layer can be bonded on the surface of the workpiece without pre-heating, and the small fractures created on the surface can release the stress of the hard-facing layer. They will not spread out into the base product. D. Including a small quantity of niobium carbide to the steel reinforcing stage throughout steelmaking can accomplish the impacts of precipitation strengthening and fine grain strengthening, thus boosting the detailed mechanical homes of steel.

Aerospace components are utilized as prep work materials for many aerospace tools parts, such as wind turbine rotors, gas tails, blades, engine nozzle cellular linings, and structural members of atomic power plants.

Chemical homes of NbC powder

Niobium carbide is an eco-friendly cubic crystal with a metallic luster belonging to a sodium chloride-type cubic crystal system. The loved one density is 8.47, the latticework constant a= 0.447 nm, as well as the melting point is 2300 ℃. The microhardness is > 235GPA (> 2400kg/mm2), which is harder than diamond. The flexible modulus is 338000N/mm2; the thermal growth coefficient is 6.65×& times; 10-6/ K, the thermal conductivity is 14w/( m? K), and the produced warm of 1 chemical book is 40.7 kJ/mol. The specific warmth ability is 36.8 J/( mol? K), and also the resistivity is 35 μ ω& mu; & omega;? centimeters 。 Insoluble in hot and chilly hydrochloric acid, sulfuric acid, and also nitric acid, soluble in a warm blended solution of hydrofluoric acid and also nitric acid. It is steady at 1000 ~ 1100 ℃ as well as rapidly oxidizes to niobium pentoxide over 1100 ℃. Niobium carbide is easy to melt in titanium, zirconium carbide, tungsten carbide, as well as various other substances, creating an isomorphic solid solution combination.

The price of NbC powder

The marketplace cost of NbC powder is influenced by different elements. Currently, its market price is in the process of vibrant change. If you need it, please call us any time.

NbC powder distributor

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