What is the chemical stability of niobium carbide

What is NbC powder?

Niobium carbide is an environment-friendly cubic crystal with a metallic gloss coming from a sodium chloride-type cubic crystal system. Its melting factor is high, its firmness is high (microhardness is 235GPa, which is harder than corundum), and also its chemical stability is excellent (it is secure at one 000 ~ 1 100 ℃ and rapidly oxidizes to niobium pentoxide above one 100 ℃). Insoluble compounds are cold and hot hydrochloric acid, sulfuric acid, and nitric acid, and also they are only soluble in the hot combined solution of hydrofluoric acid as well as nitric acid. Niobium carbide is simple to melt in titanium carbide, zirconium carbide, tungsten carbide, and other substances, resulting in an isomorphic solid remedy, so it can be utilized to produce cermet, heat-resistant alloy, as well as sealed carbide. The cemented carbide with niobium carbide has improved grain and also improved all-around performance. The cutting tools made of it also have great thermal hardness, thermal shock resistance, and thermal oxidation resistance.

? As one of the raw products of composite ceramic products, composite ceramic materials made from composite ceramic materials are often made use of in wear-resistant components, cutting tools, electrodes, and also other fields as a result of their high solidity, high melting point, exceptional chemical stability, as well as electric conductivity.

Sealed carbide can not only be utilized as a prevention of cemented carbide grain growth however likewise develop the 3rd distributed phase other than WC and Carbon monoxide along with various other carbides, which can significantly boost the thermal firmness, thermal shock resistance, warm pushing resistance and also oxidation resistance of concrete carbide. Niobium carbide can be made use of to prepare concrete carbide tool products with outstanding cutting performance as a result of its advantages of raising the firmness and boosting the crack durability of the alloy.

The tough niobium carbide hard phase of the surfacing-covered electrode gets in the framework of the surfacing layer, which provides the welding layer a good wear-resistant skeletal system as well as significantly enhances the wear resistance. The wear resistance of this protected electrode appearing wear-resistant alloy is 1.2 ~ 1.8 times greater than that of quenched No. 45 steel (HRC50) and also 2.4 ~ 3.6 times higher than Fe-Cr-C-B wear-resistant alloy. At the very same time, the hard-facing layer can be bonded on the surface of the work surface without preheating, and also the small fractures produced externally can launch the stress and anxiety of the hard-facing layer. They will not spread out right into the base material. D. Including a small amount of niobium carbide to the steel enhancing phase throughout steelmaking can accomplish the results of precipitation fortifying and also great grain conditioning, thus improving the extensive mechanical buildings of steel.

Aerospace components are made use of as preparation products for many aerospace tools components, such as turbine blades, gas rudders, blades, engine nozzle linings, and architectural participants of atomic power plants.

Chemical properties of NbC powder

Niobium carbide is a green cubic crystal with a metal luster coming from a salt chloride-type cubic crystal system. The loved one density is 8.47, the lattice constant a= 0.447 nm, and also the melting factor is 2300 ℃. The microhardness is > 235GPA (> 2400kg/mm2), which is harder than diamond. The elastic modulus is 338000N/mm2; the thermal expansion coefficient is 6.65×& times; 10-6/ K, the thermal conductivity is 14w/( m? K), and the produced warmth of 1 chemical publication is 40.7 kJ/mol. The details warmth ability is 36.8 J/( mol? K), and the resistivity is 35 μ ω& mu; & omega;? cm 。 Insoluble in hot and cold hydrochloric acid, sulfuric acid, as well as nitric acid, soluble in a warm blended option of hydrofluoric acid and nitric acid. It is steady at 1000 ~ 1100 ℃ and swiftly oxidizes to niobium pentoxide above 1100 ℃. Niobium carbide is simple to thaw in titanium, zirconium carbide, tungsten carbide, and other substances, creating an isomorphic strong option blend.

The cost of NbC powder

The market rate of NbC powder is affected by various elements. Presently, its market price is in the procedure of vibrant adjustment. If you require it, please contact us at any moment.

NbC powder distributor

Kennel35 ( also known as. Kennel35 Modern Technology Co., Ltd.) is a credible worldwide chemical material distributor and maker with 12 years of experience providing top quality chemical products and manufacturing procedures. Presently, our business has actually effectively created a collection of powder materials. OEM solution is available. If you are searching for NbC powder, please contact us or click the required items to send us a query.

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