Niobium Carbide

Niobium Carbide sputtering targets are important sputtering coating materials with the chemical formula NbC, high hardness, high melting point, good electrical conductivity, etc. They are prepared by powder metallurgy and have a wide range of applications in electronic devices, hard coatings, decorative coatings, and energy fields.

Characteristics

Molecular weight: 104.92

Melting point: about 3500℃ or 3490℃

Density: 7.6g/cm³(25℃), 7.82g/cm³.

Appearance: gray-black, metallic luster, brown – gray metallic powder with purple luster

Hardness: microhardness > 23.5GPa (>2400kg/mm²)

Modulus of elasticity: 338000N/mm².

Coefficient of thermal expansion: 6.65 x 10-⁶/K

Thermal conductivity: 14W/(m-K)

Heat of generation: -140.7kJ/mol

Specific heat capacity: 36.8J/(mol-K)

Resistivity: 35μΩ-cm

Chemical Properties: stable at 1000-1100℃, rapidly oxidized to niobium oxide above 1100℃, insoluble in hot and cold hydrochloric acid, sulfuric acid, nitric acid, soluble in hot hydrofluoric acid and nitric acid mixed solution.

Chemical Properties: stable at 1000-1100℃, rapidly oxidized to niobium oxide above 1100℃, insoluble in hot and cold hydrochloric acid, sulfuric acid, nitric acid, soluble in hot hydrofluoric acid and nitric acid mixed solution.

Applications

Electronic devices: In semiconductor manufacturing, Niobium Carbide can be used to prepare metal gates, interconnect lines, etc., which helps to improve the performance and integration of chips. Its good conductivity and stability to meet the requirements of electronic devices on high-precision, high-performance film materials, but also as a diffusion barrier layer to prevent the mutual diffusion of different metal layers to improve the reliability and stability of electronic devices.

Hard coating: Niobium Carbide can be used to prepare hard wear-resistant coatings on the surface of cutting tools, molds and other tools, which can significantly improve the hardness, wear resistance and cutting performance of the tools, reduce tool wear and improve machining accuracy and efficiency, and is suitable for high-speed cutting, precision machining and other fields.

Decorative coating: Niobium Carbide can be used to prepare decorative films with special color and luster, which can be applied to jewelry, watches, glasses and other high-grade accessories, as well as automobiles, electronic products and other decorative parts, giving the product unique visual effects and decorative properties.

Energy field: In lithium-ion batteries and other energy storage devices, Niobium Carbide can be used as electrode materials or electrode modification layer to improve the battery’s charging and discharging performance and cycle life. In addition, its high melting point and stability also make it has potential application value in nuclear energy, solar energy and other fields, such as for the preparation of high-temperature and corrosion-resistant coating materials to improve the reliability and efficiency of energy equipment.