Calcination

Definition - What does Calcination mean?

Calcination refers to the industrial process of significantly increasing the temperature of a solid metal to facilitate the removal of volatile substances that present as impurities to the metal. Calcination in combination with other practices helps to prevent crevice corrosion.

Corrosionpedia explains Calcination

Calcination is used to remove a wide variety of impurity substances. These substances are volatile in nature and include but are not limited to carbon dioxide, inert gases and ammonium ions.

The calcination process helps to prevent crevice corrosion, which can occur when dust, sand or other corrosive substances or ions are deposited on surfaces and create an environment where water may accumulate. The corrosion may occur between two metals or between a metal and a nonmetal. This causes damage to the metallic part, which is initiated by the concentration gradient of the chemicals.

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