Powder metallurgy is the technique of making metal alloys from powder form, not from a liquid melt as usual.
The alloying elements are in fine powder & lt; 0.6 mm combined and mixed well and pressed under high pressure 100 to 1000 megapascals and then heated to below the melting temperature. This is the so-called sintering.
A good example, tungsten carbide is a very hard material that is used under cutting-edge WIDIA (German whose Diamond: like diamond) applies to cutting tools such as chisels and drills. Because tungsten has such a high melting point, it would be impossible to create tungsten carbide other than powder metallurgy.
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