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:
- Coating and printing processes
- Chemical vapor deposition and physical vapor deposition
- Conversion coating
- Anodizing
- Chromate conversion coating
- Plasma electrolytic oxidation
- Phosphate (coating)
- Enamel (paint)
- Powder coating
- Industrial coating
- Silicate mineral paint
- Fusion bonded epoxy coating (FBE coating)
- Pickled and oiled, a type of plate steel coating.
- Plating
- Polymer coatings, such as Teflon
- Sputtered or vacuum deposited materials
- Enamel (vitreous)
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
- List of coating techniques
- Thin film
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