Niobium
Niobium is a chemical element with the symbol Nb and atomic number 41. It is a soft, grey, ductile transition metal, which is often used in alloys due to its excellent strength and corrosion resistance. In the context of space and astronautical engineering, niobium is commonly used in the construction of rocket engines, due to its high melting point and ability to withstand extreme temperatures. It is also used in the production of superconducting magnets, which are used in particle accelerators and magnetic resonance imaging (MRI) machines. Additionally, niobium is used in the construction of spacecraft, as it is lightweight and has excellent resistance to corrosion and fatigue.
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