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Niobium

2013-11-13 来源: 类别: 更多范文

Niobium Niobium Niobium is the forty-first element of the periodic table. Niobium was not the original name of the element. Charles Hatchett discovered the mystery element in 1801 in an ore known as columbite. He had originally called it columbium because it was so closely related to columbite. Although he could not isolate the element he knew it was in existence. This problem was later solved by a scientist named Heinrich Rose, who re-named columbium to niobium in the year 1846. The name niobium is now universally used and the use of columbium has been abolished. Niobium plays an important role in today’s world. Niobium is used in some stainless steels and alloys with nonferrous metals (metals not containing any iron). The alloys that are formed using niobium have great strength and other positive properties, and are used in many types of pipeline construction. The metal is used is arc-welding rods for some grades of stainless steel, along with advanced engineering systems such as those used in the Gemini space missions. Some magnets contain niobium and are very conductive constructed from an alloy form of a niobium, element, table, periodic, name, metals, metal, form, columbium, wire, stainless, properties, one, makes, levels, isotopes, discovered, density, columbite, body, bluish, blomstrand, being, alloys, zirconium, year, world, winter, white, very, using, universally
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