How To Use Niobium In A Sentence
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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.
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To alleviate this problem, small quantities of elements which are stronger carbide formers than chromium, such as titanium or niobium are commonly added.
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Previous attempts to lower the switching temperature have incorporated low levels of elements such as tungsten, molybdenum, niobium and fluorine.
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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.
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Niobium is a relatively inert element, although it does react with oxygen and concentrated acids at high temperatures.
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The refractory metals include niobium (also known as columbium), tantalum, molybdenum, tungsten, and rhenium.
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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.
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Titanium increases the efficiency of niobium because it combines with the nitrogen-forming titanium nitrides, thus preventing the formation of niobium nitrides.
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Certain strong carbide formers, notably niobium, titanium and vanadium, have effects on tempering out of proportion to their concentration.
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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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A second element, tantalum, is always present in these minerals along with niobium.
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Magnesium, titanium, zirconium, niobium, tantalum, molybdenum and tungsten may be soldered if they are plated with a solderable metal coating such as silver.
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Certain strong carbide formers, notably niobium, titanium and vanadium, have effects on tempering out of proportion to their concentration.
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A previous study of the columbite-tantalite series minerals indicated a similar change for tin, tantalum, niobium, and manganese.
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CBMM, established in 1955, mines the niobium deposit located near the city of Araxá, in the southeastern state of Minas Gerais.
Chinese Consortium Buying Stake in Brazilian Miner
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The company produces more than 80% of the world's supply of niobium, which is used to strengthen steel and is widely employed in making cars and natural-gas pipelines.
Chinese Consortium Buying Stake in Brazilian Miner
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Sodium is also used as a chemical reducing agent in producing titanium, zirconium, niobium, and tantalum from their fused salts.
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The initial spark was a press release from the Tantalum-Niobium International Study Centre calling for a boycott of tantalum mined illegally in world heritage sites in the Congo.
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[Footnote 1: Has priority over niobium.] [Footnote 2: Now split into neo-and praseo-didymium.] [Footnote 3: Has priority over beryllium.] [Footnote 4: Standard, or basis of the system.] *****
Scientific American Supplement, No. 803, May 23, 1891
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Magnesium, titanium, zirconium, niobium, tantalum, molybdenum and tungsten may be soldered if they are plated with a solderable metal coating such as silver.
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Ancient amber, jade and other precious stones are lovingly re-created in polymer clay, as well as newer, space-age materials, such as niobium.
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However, titanium, niobium, and tantalum can influence mechanical properties still further by encouraging the formation of other similar types of precipitates.
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Columbium (also called niobium), like vanadium, is generally considered to increase the hardenability of steel.
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This resource is potentially globally significant as a source of niobium and tantalum.
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Sodium is also used as a chemical reducing agent in producing titanium, zirconium, niobium, and tantalum from their fused salts.
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Brazil's Companhia Brasileira de Metalurgia e Mineraçào, or CBMM as it is known, produces more than 80% of the world's supply of niobium, which is used to strengthen steel and is widely employed in making cars and natural-gas pipelines.
China Group Taps Into Brazil Miner
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Thousands of Grauer's mountain gorillas, chimpanzees and elephants have been slaughtered for food by illegal miners searching for coltan, a mineral containing metals like tantalum and niobium, used in cellphones and computers.
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Welding causes problems due to excessive grain growth in the heat affected zone but, recently, new low-interstitial alloys containing titanium or niobium have been shown to be readily weldable.
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CBMM mines the niobium deposit located near the city of Araxá, Minas Gerais, Brazil.
China Group Taps Into Brazil Miner
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Because of the high solubilities in niobium and tantalum, these embrittling contaminants normally do not present problems in fabrication.
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Depending on specific requirements related to their use, hard metals might additionally contain small quantities of chromium, niobium, molybdenum, titanium, tantalum or vanadium carbides.
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Niobium is a soft metal that is used in specialist steelmaking to boost the strength of alloys.
Times, Sunday Times
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Columbite is the ore of niobium, which is used in steels and high strength alloys.
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Niobium oxides are favorable promoter and Support.
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Enter the spherical coating of niobium: when niobium becomes superconducting, and the spherical superconductor spins, it does something very handy.
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Steels microalloyed with both niobium and vanadium provide higher yield strength in the conventionally hot-rolled condition than that achievable with either element alone.
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The gyroscope rotors are covered with a layer of niobium, a metal that will superconduct when it is cooled by liquid helium.
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Niobium and tantalum— coltan is short for columbite-tantalite.
Times, Sunday Times
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These free electrons can then tunnel through a thin oxide layer on top of the niobium where they are detected as excess current.
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Other elements added to improve characteristics include nickel, molybdenum, copper, titanium, aluminum, silicon, niobium, nitrogen, sulfur, and selenium.
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Many of these cavities contain good crystals of potassium, strontium, barium, rare earths, titanium, and niobium minerals.
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Magnesium, titanium, zirconium, niobium, tantalum, molybdenum and tungsten may be soldered if they are plated with a solderable metal coating such as silver.
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Look for surgical-grade steel, titanium, 14-or 18 - karat gold, or a metal called niobium.
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Mythological characters that can be found on the periodic table include Tantalus (Tantalum, Ta) and his daughter Niobe (Niobium, Nb), and Promethius (Promethium, Pm).
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The materials all include oxygen, and one, for example, also contains niobium, tantalum, and zirconium.
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Other elements added to improve characteristics include nickel, molybdenum, copper, titanium, aluminum, silicon, niobium, nitrogen, sulfur, and selenium.
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Mr. Hallbauer added: "With limited near-term niobium production on the horizon and demand steadily growing, an open pit mining operation at Aley has strong potential to become a key asset for Taseko.
Successful Drill Program at Taseko Mines' Aley Property Indicates a Major Niobium Deposit With Potential to Develop a Significant Operation - Yahoo! Finance
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To alleviate this problem, small quantities of elements which are stronger carbide formers than chromium, such as titanium or niobium are commonly added.
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Lance Cooley of the Fermi National Accelerator Laboratory is working with a metallic element called niobium to create the next generation of high-energy physics experiments.
PhysOrg.com - latest science and technology news stories
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Other elements added to improve characteristics include nickel, molybdenum, copper, titanium, aluminum, silicon, niobium, nitrogen, sulfur, and selenium.
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The element always occurs with another chemical element, niobium.
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The proposed mine, which would dig for niobium, a rare metal, would be carved out of land near the Kahnesatake Mohawk reserve and the village of Oka.
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These minerals are the principal sources of columbium (commonly called niobium), tantalum and molybdenum metals.
Rhenium
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A second element, tantalum, is always present in these minerals along with niobium.
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The globes are coated with a layer of niobium, giving them a silvery finish.
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For processing fine, feebly magnetic minerals, such as hematite, limonite, ilmenite, wolframite, tantalumniobium, red sludge and etc.
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Niobium is a ductile and soft metal at elevated temperatures.
