What is the chemical stability of niobium carbide

What is NbC powder?

Niobium carbide is an eco-friendly cubic crystal with a metal luster belonging to a sodium chloride-type cubic crystal system. Its melting point is high, its firmness is high (microhardness is 235GPa, which is harder than diamond), and also its chemical stability is excellent (it is stable at one 000 ~ 1 100 ℃ and quickly oxidizes to niobium pentoxide over one 100 ℃). Insoluble substances are cold and hot hydrochloric acid, sulfuric acid, as well as nitric acid, and they are only soluble in the warm combined solution of hydrofluoric acid and nitric acid. Niobium carbide is easy to thaw in titanium carbide, zirconium carbide, tungsten carbide, and other substances, leading to an isomorphic solid solution, so it can be utilized to make cermet, heat-resistant alloy, as well as sealed carbide. The sealed carbide with niobium carbide has fine-tuned grain as well as enhanced all-around performance. The cutting devices made of it likewise have excellent thermal hardness, thermal shock resistance, as well as thermal oxidation resistance.

? As one of the raw materials of composite ceramic products, composite ceramic materials made of composite ceramic products are typically made use of in wear-resistant components, cutting devices, electrodes, and also other areas due to their high solidity, high melting point, excellent chemical security, and electric conductivity.

Cemented carbide can not just be utilized as an inhibitor of concrete carbide grain growth yet likewise create the third dispersed stage except WC and also Carbon monoxide together with various other carbides, which can significantly enhance the thermal firmness, thermal shock resistance, warm pushing resistance and also oxidation resistance of concrete carbide. Niobium carbide can be utilized to prepare concrete carbide tool materials with exceptional reducing performance because of its benefits of boosting the hardness as well as improving the fracture sturdiness of the alloy.

The tough niobium carbide difficult stage of the surfacing-covered electrode goes into the framework of the appearing layer, which provides the welding layer a great wear-resistant skeleton as well as considerably enhances the wear resistance. The wear resistance of this protected electrode emerging wear-resistant alloy is 1.2 ~ 1.8 times greater than that of quenched No. 45 steel (HRC50) as well as 2.4 ~ 3.6 times more than Fe-Cr-C-B wear-resistant alloy. At the same time, the hard-facing layer can be bonded externally of the workpiece without preheating, as well as the little fractures produced externally can launch the anxiety of the hard-facing layer. They will certainly not spread right into the base product. D. Adding a small amount of niobium carbide to the steel strengthening phase throughout steelmaking can achieve the effects of rainfall strengthening as well as fine grain conditioning, thus boosting the thorough mechanical buildings of steel.

Aerospace components are used as prep work materials for many aerospace devices components, such as generator blades, gas tails, blades, engine nozzle linings, and structural members of nuclear reactors.

Chemical properties of NbC powder

Niobium carbide is an environment-friendly cubic crystal with a metal luster coming from a sodium chloride-type cubic crystal system. The family member density is 8.47, the lattice constant a= 0.447 nm, as well as the melting point is 2300 ℃. The microhardness is > 235GPA (> 2400kg/mm2), which is tougher than diamond. The flexible modulus is 338000N/mm2; the thermal expansion coefficient is 6.65×& times; 10-6/ K, the thermal conductivity is 14w/( m? K), and the generated warmth of 1 chemical publication is 40.7 kJ/mol. The certain warm capability is 36.8 J/( mol? K), and the resistivity is 35 μ ω& mu; & omega;? centimeters 。 Insoluble in cold and hot hydrochloric acid, sulfuric acid, and also nitric acid, soluble in a warm combined service of hydrofluoric acid as well as nitric acid. It is stable at 1000 ~ 1100 ℃ and also rapidly oxidizes to niobium pentoxide over 1100 ℃. Niobium carbide is easy to melt in titanium, zirconium carbide, tungsten carbide, and various other substances, forming an isomorphic strong remedy mix.

The rate of NbC powder

The marketplace cost of NbC powder is impacted by different elements. Presently, its market value remains in the process of vibrant adjustment. If you require it, please call us any time.

NbC powder vendor

Duotonic ( aka. Duotonic Innovation Co., Ltd.) is a reliable international chemical material supplier and also supplier with 12 years of experience giving top quality chemical products and producing procedures. Currently, our firm has actually efficiently created a collection of powder materials. OEM service is offered. If you are looking for NbC powder, please contact us or click the needed products to send us a questions.

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