There have been many theories written on how copper graphite is created, many of which are completely untrue.

According to Eben Walker, president of Graphite Metallizing, the creation of copper graphite relies upon the unique structure of manufactured graphite, which includes a controlled amount of open porosity. This open porosity provides the pathways for copper to reach inside the graphite. The objective of metal impregnation is to fill these pores completely.

 The impregnation process is performed at 2400oF (1300oC) in a controlled atmosphere to eliminate oxidation. The graphite must be heated first and then completely submerged in molten metal. Once completely surrounded by molten copper, several hundred atmospheres of pressure are applied to force the metal into the pores of the graphite. After the pores are fully infiltrated, the excess metal is removed and the graphite is allowed to cool in an inert atmosphere.                       

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