Even though the age of the vacuum tube is long gone and the world has largely turned away from incandescent lighting, tungsten wire is still an important end product. A single ingot of tungsten ...
A RECENT paper from this laboratory 1 described the embrittlement of tungsten wire if it be heated in atmospheres containing even traces of ammonia. This work has been extended and has revealed a ...
Russia ranks third after China and Kazakhstan in terms of the size of the tungsten raw material base
The most striking example is tungsten filaments in electric lamps. One kilogram of tungsten produces a wire 3.5 kilometers long, or about 23 thousand filaments. Medical instruments are made from ...
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