powder metallurgy

noun
the art or science of manufacturing useful articles by compacting metal and other powders in a die, followed by sintering.

Origin:
1930–35

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World English Dictionary
powder metallurgy
 
n
the science and technology of producing solid metal components from metal powder by compaction and sintering

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
Used in powder metallurgy and as a catalyst in chemical manufacture.
The powder is consolidated by powder metallurgy techniques or by argon-arc
  welding.
Application of powder metallurgy techniques for the development of non-toxic
  ammunition.
These alloys are being produced by melting and casting as well as powder
  metallurgy approaches.
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