Niobium Nitride powder is a black or light gray slightly yellow powder with high melting point, high hardness, superconducting properties and strong chemical stability, the chemical formula is NbN, which is widely used in the fields of electronics and cemented carbide.<\/p>\n
Properties<\/p>\n
Chemical formula: NbN<\/p>\n
CAS No.: 24621-21-4<\/p>\n
EINECS No.: 246-362-5<\/p>\n
Appearance: usually black powder<\/p>\n
Density: Relative density is about 8.47.<\/p>\n
Melting point: 2300\u2103.<\/p>\n
Hardness: Mohs hardness 8, microhardness 14.3GPa.<\/p>\n
Resistivity: 200\u03bc\u03a9-cm<\/p>\n
Superconductivity: niobium nitride becomes superconductor at low temperature (about 16K), its superconducting critical temperature is 17.3K, the upper critical magnetic field is 43T, and the critical current density (4.2K, 20T) is as high as, it is a kind of excellent superconducting thin film material, so it is widely used in infrared light detectors, superconducting quantum instrumentation devices and other fields.<\/p>\n
Chemical stability: high thermal and chemical stability, insoluble in concentrated acid solution, but soluble in hot alkali or high concentration of alkali, and release ammonia; when heated to 500-800 \u2103 in the air, the generation of niobium pentoxide at the same time release nitrogen; in a vacuum niobium nitride decomposition of niobium to generate metal niobium.<\/p>\n
Applications in the field of electronics<\/p>\n
Electronics: Due to its superconducting properties, niobium can be used in the manufacture of superconducting quantum interference devices, infrared detectors, etc., which helps to improve the performance and sensitivity of electronic devices.<\/p>\n
Cemented carbide additives: can improve the hardness, wear resistance and corrosion resistance of cemented carbide, thereby extending the service life of cemented carbide tools and molds.<\/p>\n
Coating materials: can be used as coating materials on the surfaces of parts requiring high hardness, high abrasion resistance and good chemical stability, such as mechanical parts, aerospace parts, etc., in order to improve their surface performance and service life.<\/p>\n
Capacitors: It can be used to manufacture high-performance niobium electrolytic capacitors. By adjusting the characteristics of niobium nitride powder, we can obtain capacitors with high capacitance value and low DC leakage, which can satisfy the needs of modern electronic circuits for high-performance capacitors.<\/p>\n","protected":false},"excerpt":{"rendered":"
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