[ UK /nɪˈə‍ʊbi‍əm/ ]
[ US /ˌnaɪˈoʊbiəm/ ]
  1. a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
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How To Use niobium In A Sentence

  • The mine in question will be digging for niobium, a rare metal used as a steel alloy to save on weight and thickness, which is more resistant to corrosion and is easier to weld.
  • To alleviate this problem, small quantities of elements which are stronger carbide formers than chromium, such as titanium or niobium are commonly added.
  • Previous attempts to lower the switching temperature have incorporated low levels of elements such as tungsten, molybdenum, niobium and fluorine.
  • Many contemporary chemists believed niobium and tantalum were the same elements until 1844 and later 1866 when researchers showed that niobic and tantalic acids were different compounds.
  • Niobium is a relatively inert element, although it does react with oxygen and concentrated acids at high temperatures.
  • The refractory metals include niobium (also known as columbium), tantalum, molybdenum, tungsten, and rhenium.
  • Likewise, we could explain the known properties of Earth's core by an alloy of niobium but choose not to do so because a much more abundant element - iron - can do the job.
  • Titanium increases the efficiency of niobium because it combines with the nitrogen-forming titanium nitrides, thus preventing the formation of niobium nitrides.
  • Certain strong carbide formers, notably niobium, titanium and vanadium, have effects on tempering out of proportion to their concentration.
  • Vanadium, molybdenum, niobium, titanium, chromium, nickel, manganese are but a few of the many metals which make their way into steel to yield alloys with special properties.
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