Metal Niobium (Nb) Powder CAS 7440-03-1

superalloy

A large portion of the world's niobium is used in the production of nickel, chromium and iron-based superalloys in pure metallic form or in the form of high purity ferric niobium and niobium nickel alloys. These alloys are used in jet engines, gas turbine engines, rocket components, turbochargers and heat-resistant combustion devices. Niobium will form y phase in the grain structure of superalloy. These alloys generally contain up to 6.5% niobium. Incone1718 alloy is one of the niobium-nickel based alloys, the content of each element is: nickel 50%, chromium 18.6%, iron 18.5%, niobium 5%, key 3.1%, titanium 0.9% and aluminum 0.4%. Applications include as a high-end airframe material, such as was used in Project Gemini.

Niobium base alloy

C-103 is a niobium alloy containing 89% niobium, 10% hafnium and 1% titanium, which can be used in liquid rocket propulsion nozzles, such as the main engine of the Apollo lunar module. The Apollo service module used a different silver alloy. Since niobium begins to oxidize above 400 ° C, in order to prevent it from becoming brittle, a protective coating must be applied to its surface.

Niobium also plays an important role in surgical treatment, it can not only be used to manufacture medical devices, but also is a good "biological adaptive material", because it has excellent corrosion resistance, will not interact with various liquid substances in the human body, and almost completely does not damage biological body tissues, for any sterilization methods can be adapted to. So it can bind to organic tissue for a long time and remain harmlessly in the body.