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tungsten    音标拼音: [t'ʌŋstən]
n. 钨,钨锰铁矿,金属元素

钨,钨锰铁矿,金属元素

tungsten
n 1: a heavy grey-white metallic element; the pure form is used
mainly in electrical applications; it is found in several
ores including wolframite and scheelite [synonym: {tungsten},
{wolfram}, {W}, {atomic number 74}]

Tungsten \Tung"sten\ (t[u^]ng"st[e^]n), n. [Sw. tungsten (cf.
Dan. tungsteen, G. tungstein); tung heavy (akin to Dan. tung,
Icel. [thorn]ungr) sten stone. See {Stone}.]
1. (Chem.) A rare element of the chromium group found in
certain minerals, as wolfram and scheelite, and isolated
as a heavy steel-gray metal which is very hard and
infusible. It has both acid and basic properties. When
alloyed in small quantities with steel, it greatly
increases its hardness. Symbol W (Wolframium). Atomic
weight, 183.6. Specific gravity, 18.
[1913 Webster]

2. (Min.) Scheelite, or calcium tungstate. [Obs.]
[1913 Webster]

{Tungsten ocher}, or {Tungstic ocher} (Min.), tungstite.
[1913 Webster]


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  • Tungsten e-Invoice Network
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  • Tungsten - Wikipedia
    It is a metal found naturally on Earth almost exclusively in compounds with other elements It was identified as a distinct element in 1781 and first isolated as a metal in 1783 Its important ores include scheelite and wolframite, the latter lending the element its alternative name
  • Tungsten | Uses, Properties, Facts | Britannica
    tungsten (W), chemical element, an exceptionally strong refractory metal of Group 6 (VIb) of the periodic table, used in steels to increase hardness and strength and in lamp filaments
  • Why tungsten prices are rising so fast: inside the supply crunch
    Why are tungsten prices rising so sharply? The price rally in tungsten is being driven by a vicious cycle of US tariffs, Chinese export controls, strategic defense stockpiling, and limited new mine supply
  • What Is Tungsten Used For? Its Applications and Properties
    Tungsten, identified by the chemical symbol W, is a unique element known for its exceptional physical properties As a transition metal, it stands out for possessing the highest melting point of all known metals, reaching approximately 3,422 °C (6,192 °F)
  • What Is Tungsten? Its Minerals Uses - Rock Gem Magazine
    Understanding what is tungsten —its extraordinary hardness, density, and versatility—helps explain why this remarkable metal continues to find new industrial, scientific, and decorative applications With such unique properties, tungsten is poised for even more innovative uses in the future
  • Tungsten - Element information, properties and uses | Periodic Table
    Tungsten has the highest melting point of all metals and is alloyed with other metals to strengthen them Tungsten and its alloys are used in many high-temperature applications, such as arc-welding electrodes and heating elements in high-temperature furnaces
  • Tungsten Facts, Symbol, Discovery, Properties, Uses
    Tungsten (pronunciation TUNG-sten [2]), represented by the chemical symbol or formula W [1], is a hard, brittle element belonging to the family of transition metals [3]
  • Tungsten Facts – W or Atomic Number 74 (Wolfram)
    Tungsten is a chemical element with the symbol W and atomic number 74 that stands out for its remarkable properties, especially its extreme melting point The name ‘tungsten’ comes from the Swedish words “tung sten”, meaning “heavy stone”
  • Every missile fired over Iran is burning through US tungsten stocks
    Most, if not all of them, contain tungsten - a super-hard metal that allows missiles to penetrate armour or underground bunkers Unlike a tungsten carbide drill bit, which can be recycled,





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