Physical and chemical properties of niobium carbide NBC powder

Niobium carbide is a metal carbide with the chemical formula NbC.

Physical and chemical properties of niobium carbide NBC powder

Niobium carbide is a green cubic crystal with metallic luster and belongs to the sodium chloride type cubic crystal system.

Relative density 8.47, lattice constant a=0.447nm,

Melting point 3500 ℃. Microhardness>23.5 Gpa (>2400 kg/mm2), harder than corundum. Elastic modulus 338000 N/mm2, thermal expansion coefficient 6.65×10^(-6)/K, thermal conductivity 14 w/(m K), heat of formation -140.7 kJ/mol, specific heat capacity 36.8 J/(mol K) , the resistivity is 35μΩ·cm.

Insoluble in hot and cold hydrochloric acid, sulfuric acid, nitric acid, soluble in hot mixed solution of hydrofluoric acid and nitric acid. It is stable at 1000~1100℃, and rapidly oxidizes to niobium pentoxide when it is above 1100℃. Niobium carbide is easy to melt in titanium carbide, zirconium carbide, tungsten carbide and other compounds, and together form an isomorphous solid solution mixture. Melting point: 3500℃, density: 7.6g/cm³(25℃)

Overview of Niobium Carbide NBC Powder

Niobium carbide (NBC and Nb2C) is a very hard refractory ceramic material used commercially for cutting tool tips. It is usually processed by sintering and is a commonly used additive in cemented carbide as a grain growth inhibitor. The appearance is brown-gray metal powder with purple luster and strong corrosion resistance.

Niobium carbide can be produced by heating niobium oxide to 1800°C in a vacuum and adding coke.

Niobium carbide NBC powder is dark gray-brown powder with cubic crystal structure and metallic luster. It is stable from 1000 to 1100°C and oxidizes rapidly to niobium pentoxide above 1100°C.

Niobium carbide NBC powder has good chemical stability and high temperature performance. It is a high melting point, high hardness material.

Niobium carbide NBC powder is insoluble in hot and cold hydrochloric acid, sulfuric acid and nitric acid, but is soluble in a mixed solution of hot hydrofluoric acid and nitric acid.

Niobium carbide NBC powder is easily soluble in titanium carbide, zirconium carbide, tungsten carbide and other compounds to form a uniform solid solution mixture, which is a commonly used cemented carbide additive.

Application of Niobium Carbide NBC Powder

Niobium carbide NBC powder can partially replace tantalum carbide and is widely used in refractory high temperature materials and cemented carbide additives

As a cemented carbide additive, niobium carbide is a solid solution component of ternary and quaternary carbides, such as WC-NBC-C ternary system.

Niobium carbide NBC powder can also be used to make purple artificial gemstones.

Niobium carbide NBC powder price

The price of niobium carbide NBC powder will vary randomly with the production cost, transportation cost, international situation, exchange rate and market supply and demand of niobium carbide NBC powder. Tanki New Materials Co., Ltd. aims to help industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for Niobium Carbide NBC Powder, please feel free to send an inquiry for the latest price of Niobium Carbide NBC Powder.

Niobium Carbide NBC Powder Suppliers

As a global supplier of niobium carbide NBC powder, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced technology and engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics and structural devices, and can provide OEM services.