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1.铌及用途铌是银灰色的金属,熔点为2468°C,高温强度大,抗液态金属腐蚀能力强,热中子俘获截面小,在-196°C低温下延性良好,超导性能优良,密度低,室温下化学性能稳定,并具有较高的热传导系数.因此在铁合金,超合金、原子能、航空、宇航、超导体等工业方面获得广泛的应用.随着科学技术的发展,近年来燃气涡轮发动机、宇宙能源系统、化学设备、超硬工具、光学透镜和强
1. Niobium and its uses Niobium is a silver-gray metal with a melting point of 2468 ° C. It has a high temperature strength and strong resistance to liquid metal corrosion. The thermal neutron capture cross section is small and ductility is good at low temperatures of -196 ° C. Superconductivity is excellent , Low density, stable chemical property at room temperature and high thermal conductivity, so it has been widely used in industries such as ferroalloy, superalloy, atomic energy, aviation, aerospace and superconductor etc. With the development of science and technology, Turbine engines, cosmic energy systems, chemical equipment, superhard tools, optical lenses and strong