Substrate (materials science)

Substrate is a term used in materials science to describe the base material on which processing is conducted to produce new film or layers of material such as deposited coatings.

A typical substrate might be a metal, onto which a coating might be deposited by any of the following processes:

In optics, glass may be used as a substrate for an optical coating—either an antireflection coating to reduce reflection, or a mirror coating to enhance it.

A substrate may be also an engineered surface where an unintended or natural process occurs, like in:

See also

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