Tantalum surface to form a dense amorphous oxide film stability, high dielectric strength, easy to accurately and easily control capacitor anodic oxidation process, at the same time, tantalum powder sintering block can be obtained in a very small volume large surface area, therefore tantalum capacitor is small in size, large capacity, low leakage current, long life, excellent comprehensive performance, is the best capacitor, not only on the condition of normal than ceramic film, aluminum, and other other capacitor is small in size, high capacity, stable function, but also in many other capacitor normal work is not up to the severe conditions. Because tantalum capacitors have incomparable excellent characteristics, in the field of microelectronics science and surface mount technology, there is almost no equivalent substitute for other capacitors to compete with them. Therefore, 60 ~ 65% of tantalum is used to make tantalum capacitors in the form of capacitor grade tantalum powder and tantalum wire. In metallurgical industry, niobium is mainly used to make alloy steel resistant to high temperature and to improve the strength of steel. When smelting carbon steel, only a few parts of niobium are needed to increase the strength of the steel by one third to L. Superalloys made of niobium and tantalum, tungsten, aluminum, nickel, cobalt and vanadium are good structural materials for supersonic jet and rocket.
In the mechanical industry, with niobium carbide, tantalum carbide and other cemented carbide cutter, can withstand the high temperature of nearly 3000℃, its hardness can be compared with the world's hardest material -- diamond.
Tantalum is an ideal biocompatible material in medicine. When it is in direct contact with human bone, muscle tissue and fluid, it can adapt to biological cells, with excellent affinity, almost no human stimulation and side effects. Tantalum can not only be used to make bone plates, screws and clamps for fracture treatment, but also can be used to repair bones directly with tantalum plates and tantalum pieces and replace broken bones caused by trauma with tantalum bars. Tantalum wire and foil can sew nerves, muscles and blood vessels above 1.5 mm, and extremely thin tantalum wire can replace tendons and even nerve fibers. Tantalum yarn made of tantalum silk and tantalum mesh can be used to repair muscle tissue.
