What is the chemical stability of niobium carbide
What is NbC powder?
Niobium carbide is an eco-friendly cubic crystal with a metal luster coming from a salt chloride-type cubic crystal system. Its melting point is high, its hardness is high (microhardness is 235GPa, which is harder than diamond), and also its chemical stability is good (it is stable at one 000 ~ 1 100 ℃ and also swiftly oxidizes to niobium pentoxide over one 100 ℃). Insoluble materials are warm and cool hydrochloric acid, sulfuric acid, and also nitric acid, and they are only soluble in the warm blended option of hydrofluoric acid as well as nitric acid. Niobium carbide is very easy to thaw in titanium carbide, zirconium carbide, tungsten carbide, and other compounds, causing an isomorphic strong solution, so it can be used to manufacture cermet, heat-resistant alloy, and also sealed carbide. The cemented carbide with niobium carbide has improved grain and also boosted well-rounded performance. The cutting tools made of it also have great thermal solidity, thermal shock resistance, and thermal oxidation resistance.
What is NbC powder utilized for
? As one of the raw products of composite ceramic products, composite ceramic materials made from composite ceramic materials are typically utilized in wear-resistant components, reducing tools, electrodes, as well as other fields due to the fact that of their high solidity, high melting factor, outstanding chemical stability, and also electric conductivity.
Cemented carbide can not just be utilized as a prevention of concrete carbide grain development however also develop the 3rd distributed stage other than WC as well as Co with each other with other carbides, which can considerably improve the thermal firmness, thermal shock resistance, hot pressing resistance and oxidation resistance of cemented carbide. Niobium carbide can be utilized to prepare cemented carbide device products with outstanding cutting performance as a result of its advantages of boosting the hardness and also boosting the crack durability of the alloy.
The tough niobium carbide hard phase of the surfacing-covered electrode goes into the framework of the surfacing layer, which gives the welding layer a good wear-resistant skeletal system and considerably enhances the wear resistance. The wear resistance of this covered electrode surfacing wear-resistant alloy is 1.2 ~ 1.8 times more 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 welded externally of the workpiece without preheating, as well as the tiny cracks generated on the surface can release the tension of the hard-facing layer. They will not spread into the base product. D. Adding a small quantity of niobium carbide to the steel enhancing stage during steelmaking can attain the effects of rainfall fortifying and also fine grain strengthening, therefore improving the detailed mechanical residential or commercial properties of steel.
Aerospace components are made use of as prep work materials for numerous aerospace tools components, such as wind turbine blades, gas tails, blades, engine nozzle cellular linings, and structural members of nuclear activators.
Chemical homes of NbC powder
Niobium carbide is an eco-friendly cubic crystal with a metal radiance coming from a salt chloride-type cubic crystal system. The family member density is 8.47, the latticework constant a= 0.447 nm, and also the melting factor 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), as well as the created heat of 1 chemical publication is 40.7 kJ/mol. The particular warmth capability is 36.8 J/( mol? K), and the resistivity is 35 μ ω& mu; & omega;? centimeters 。 Insoluble in warm as well as cool hydrochloric acid, sulfuric acid, and nitric acid, soluble in a hot mixed solution of hydrofluoric acid and also nitric acid. It is secure at 1000 ~ 1100 ℃ and rapidly oxidizes to niobium pentoxide over 1100 ℃. Niobium carbide is easy to thaw in titanium, zirconium carbide, tungsten carbide, and also various other compounds, forming an isomorphic strong solution mix.
The cost of NbC powder
The market price of NbC powder is influenced by various factors. Presently, its market cost is in the process of dynamic adjustment. If you need it, please call us at any kind of time.
NbC powder distributor
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