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Tungsten's high melting point makes tungsten a good material for applications like rocket nozzles, for example in the UGM-27 Polaris submarine-launched ballistic missile. [82] Tungsten alloys are used in a wide range of applications, including the aerospace and automotive industries and radiation shielding. [ 83 ]
The table below shows some of the parameters of common superconductors.X:Y means material X doped with element Y, T C is the highest reported transition temperature in kelvins and H C is a critical magnetic field in tesla.
Thirty-four artificial radioisotopes of tungsten have been characterized with mass numbers ranging from 156 to 194, the most stable of which are 181 W with a half-life of 121.2 days, 185 W with a half-life of 75.1 days, 188 W with a half-life of 69.4 days and 178 W with a half-life of 21.6 days.
Its high melting point makes tungsten a good material for applications like rocket nozzles, for example in the UGM-27 Polaris. [24] Some of the applications of tungsten are not related to its refractory properties but simply to its density. For example, it is used in balance weights for planes and helicopters or for heads of golf clubs.
Pages in category "Tungsten compounds" The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes. C. Cemented carbide;
Structurally, they resemble sulfates. Six-coordinate, octahedral tungsten dominates in the polyoxotungstates. In these compounds, the W–O distances are elongated. [1] Some examples of tungstate ions: [3] HWO − 4 (hydrogentungstate) [3] polymeric W 2 O 2− 7 ions of various structures in Na 2 W 2 O 7, Li 2 W 2 O 7 and Ag 2 W 2 O 7 [4] [W 7 ...
The first time that A15 structure was observed was in 1931 when an electrolytically deposited layer of tungsten was examined. [2] Discussion of whether the β-tungsten structure is an allotrope of tungsten or the structure of a tungsten suboxide was long-standing, but since the 1950s there has been many publications showing that the material is a true allotrope of tungsten.
Copper–tungsten ; Corinthian bronze (gold, silver) Cunife (nickel, iron) Cupronickel ; CuSil ; Cymbal alloys ; Devarda's alloy (aluminium, zinc) Hepatizon (gold, silver) Manganin (manganese, nickel) Melchior ; high corrosion resistance, used in marine applications in condenser tubes; Nickel silver