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Incandescent
Lamps |
Tungsten
is used as a filament because of its non sag characteristics
necessary for this application. |
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High
Temperature Furnaces |
In
high temperature furnaces the heating elements are made
out of tungsten by virtue of its high melting point. |
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Electrical
Contacts |
Tungsten in pure form or alloyed with copper or silver
is used for electrical contact materials. Because of its
high melting point, its resistance to wear and spark erosion
and its low electrical resistivity.
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Welding
Electrodes |
The
high melting point and low vapour pressure of tungsten
make it suitable for use as a electrodes for arc welding. |
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Electron
Tubes |
Tungsten
is used for heater elements and supports in high power
electron tubes because of the good mechanical properties
of tungsten at high temperatures. Thoriated tungsten is
used to increase the electron emissivity at high temperature. |
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X-ray Tubes |
Because
of high atomic number and high melting point, tungsten
is an ideal material for anodes in x-ray tubes |
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Vacuum
Deposition |
Tungsten
wires and boats are used for vacuum evaporation and deposition
of several material such as aluminium, gold, nickel, platinum,
etc. |
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