What is the role of tantalum niobium?

Niobium is a rare metal and has important applications in the field of material science and engineering in the 21st century. Tantalum-niobium ore is a general term for ores containing tantalum and niobium, and is the main mineral source for extracting tantalum-niobium metal. what is the specific role of tantalum niobium?
Tantalum niobium ore is a general term, there are many kinds, common tantalum iron ore, niobium iron ore and pyrochlore. Tantalum and niobium are extracted from tantalum-niobium ore and are used in many industries as expensive rare metals. Tantalum and niobium physical and chemical properties are very similar, are high melting point, high boiling point metal, tantalum has good ductility, thermal conductivity, high temperature resistance, low vapor pressure, corrosion resistance, good welding performance, cold processing and excellent dielectric properties and other characteristics. Niobium has the characteristics of corrosion resistance, deformation resistance, good thermoelectric conductivity and excellent superconducting properties.
The distribution of niobium-tantalum ore is relatively concentrated. In China, there are mainly Yichun niobium-tantalum ore in Jiangxi, Baiyunebo ore in Baotou, Inner Mongolia, granite-type niobium ore in Zalut Banner, Huayang, Shaanxi, Sichuan, uranium-niobium-lead ore, and Hubei, Zhushan, Miaoya, niobium-tantalum ore. The niobium-tantalum deposit located in Yichun, Jiangxi Province is a super-large deposit containing tantalum, niobium, lithium, beryllium, rubidium, cesium and other rare metals, and is also an important rare earth dispersed element mineral resource base in China. Although the reserves of tantalum and niobium ore in China are still relatively large, the grade is low.
What is the role of tantalum niobium? Tantalum niobium can be widely used in electronics, aerospace, machinery industry and atomic reactors. Niobium and tantalum are often used as additives to produce a variety of alloys, such as heat-strong alloys, heat-resistant alloys, super-hard alloys, structural alloys, magnetic alloys, etc., which are used to manufacture structural materials and protective materials for atomic reactors, nozzles and cutting tools for rockets and missiles, and drill bits. Various alloy steels are widely used in railways, bridges, pipelines, shipbuilding, automobiles, aircraft, machinery manufacturing, etc.