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Tungsten (also called wolfram) [11] [12] is a chemical element; it has symbol W and atomic number 74. Tungsten is a rare metal found naturally on Earth almost exclusively as compounds with other elements. It was identified as a new element in 1781 and first isolated as a metal in 1783.
Naturally occurring tungsten ( 74 W) consists of five isotopes. Four are considered stable ( 182 W, 183 W, 184 W, and 186 W) and one is slightly radioactive, 180 W, with an extremely long half-life of 1.8 ± 0.2 exayears (10 18 years). On average, two alpha decays of 180 W occur per gram of natural tungsten per year, so for most practical ...
Tungsten steel is any steel that has tungsten as its alloying element with characteristics derived mostly from the presence of this element (as opposed to any other element in the alloy). Common alloys have between 2% and 18% tungsten by weight along with small amounts of molybdenum and vanadium which together create an alloy with exceptional ...
Tungsten Network is a global electronic invoicing firm that provides supply chain financing services from international offices in the United Kingdom, United States, Bulgaria, Germany, and Malaysia. As a small- to medium-sized IT company, they have an estimated revenue of £31.3 million (GBP) as of July 2017. [2]
Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering for use in industrial machinery, cutting tools, chisels, abrasives, armor-piercing shells and jewelry.
Copper–tungsten. Copper–tungsten ( tungsten–copper, CuW, or WCu) is a mixture of copper and tungsten. As copper and tungsten are not mutually soluble, the material is composed of distinct particles of one metal dispersed in a matrix of the other one. The microstructure is therefore rather a metal matrix composite instead of a true alloy.
The first Tungsten, the Tungsten T, introduced in November 2002 and known during development as the M550, was the first model to use Palm OS 5. The Tungsten T was designed by Palm engineers based in Arlington Heights, Illinois. It had: 16 megabytes of memory, Texas Instruments OMAP (ARM) 144 MHz processor, built-in microphone for voice memos,
Ferrotungsten (FeW) is a ferroalloy, consisting of iron and tungsten. The metal usually consists of 75%-82% or 70%-75% tungsten. Applications. Because of its high melting point, ferrotungsten is a robust alloy with applications in aerospace and making of tungsten-containing steel. Tungsten's unique electrical capabilities has made ferrotungsten ...
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