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The mineral group tantalite [(Fe, Mn)Ta 2 O 6] is the primary source of the chemical element tantalum, a corrosion (heat and acid) resistant metal.It is chemically similar to columbite, and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides.
Tantalum is a chemical element; it has symbol Ta and atomic number 73. It is named after Tantalus, a figure in Greek mythology. [11] Tantalum is a very hard, ductile, lustrous, blue-gray transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as components of strong high-melting ...
Bestway Sandwiches Inc. is recalling nearly 25,000 pounds of frozen chicken and cheese taquito products that may have been contaminated with foreign material, specifically metal, the U.S ...
The Wasserstrom Company is a restaurant supplier based in Columbus, Ohio with distribution centers located across North America. [2] The Wasserstrom Company is a family-owned and operated business that was founded in 1902 by Nathan Wasserstrom. [3]
In Canada, Tanco Mine near Bernic Lake in Manitoba has tantalum reserves, is the world's largest producer of caesium, and is operated by Global Advanced Metals Pty Ltd. A discussion of Canadian mining by Natural Resources Canada, updated in 2017, does not mention either coltan or tantalum. [12]
The fast-food chain—known for burgers, fries, and drive-thrus—is one of the most recognizable brands on the planet, with over 40,000 restaurants and billions of dollars in sales. Eric Glenn ...
A compound semiconductor is a semiconductor compound composed of chemical elements of at least two different species. These semiconductors form for example in periodic table groups 13–15 (old groups III–V), for example of elements from the Boron group (old group III, boron, aluminium, gallium, indium) and from group 15 (old group V, nitrogen, phosphorus, arsenic, antimony, bismuth).
Tantalum; Stainless Steel; Titanium; Tungsten or Wolframite; Waspaloy; Materials with high alloy content, known as super alloys or exotic alloys, offer enhanced performance properties including excellent strength and durability, and resistance to oxidation, corrosion and deforming at high temperatures or under extreme pressure.