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Thermal conductivity: 173 W/(m⋅K) Electrical resistivity: 52.8 nΩ⋅m (at 20 °C) ... Tungsten (also called wolfram) [14] [15] is a chemical element; ...
When the contact is very fine grained (VFG), the electrical conductivity is much higher than a normal piece of copper tungsten. [6] Copper tungsten is a good choice for a vacuum contact due to its low cost, resistance to arc erosion, good conductivity, and resistance to mechanical wear and contact welding.
Each tungsten center has the d 2 configuration, which gives the material a high electrical conductivity. WO 2 is prepared by reduction of WO 3 with tungsten powder over the course of 40 hours at 900 °C. An intermediate in this reaction is the partially reduced, mixed valence species W 18 O 49.
Electrical conductivity of water samples is used as an indicator of how salt-free, ion-free, or impurity-free the sample is; the purer the water, the lower the conductivity (the higher the resistivity). Conductivity measurements in water are often reported as specific conductance, relative to the conductivity of pure water at 25 °C.
Tungsten, 74 W; Tungsten ... Thermal conductivity: 173 W/(m⋅K) Electrical resistivity: 52.8 nΩ⋅m (at 20 °C) Magnetic ordering: paramagnetic [10] Molar magnetic ...
As quoted in an online version of: David R. Lide (ed), CRC Handbook of Chemistry and Physics, 84th Edition.CRC Press. Boca Raton, Florida, 2003; Section 4, Properties of the Elements and Inorganic Compounds; Physical Properties of the Rare Earth Metals
Tungsten nitride (W 2 N, WN, WN 2) is an inorganic compound, a nitride of tungsten. [1] It is a hard, solid, brown-colored ceramic material that is electrically conductive and decomposes in water. It is used in microelectronics as a contact material , for conductive layers, and barrier layers between silicon and other metals, e.g. tungsten or ...
Sodium tungsten bronze is a form of insertion compound with the formula Na x WO 3, where x is equal to or less than 1. So named because of its metallic lustre, its electrical properties range from semiconducting to metallic depending on the concentration of sodium ions present; it can also exhibit superconductivity .