20 Examples of Deposition

The deposition is the transformation of a gas in a solid. It is a thermodynamic process, that is, it originates if certain properties (such as temperature and pressure) vary when the system passes from an initial state of equilibrium to a final one. For example: anti-reflective, solar cells, snow.

The reverse process deposition is the sublimation, that is, the direct change from the solid state to the gaseous state without first passing through the liquid state. This is why deposition is also called reverse sublimation.

Since the deposition process releases energy, it is an exothermic phase (state) change.

exist various processes of deposition, some natural (manifested spontaneously in nature) and others deliberately carried out through technological processes that allow creating objects of pure substances, or use a solid product to coat different objects.

Examples of deposition

1. Electrical conduction. Metallic films, transparent conductive oxides, superconducting and coatings are created through chemical deposition.
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2. Anti-reflective. Magnesium fluoride deposition is used on optical lenses to achieve anti-reflective effects.
3. Solar cells. The deposition of a film is used, through chemical deposition.
4. Electric connections. The deposition of metals to cover electrical connections in integrated circuits.
5. Synthetic diamonds. They are produced from gaseous carbon atoms, through chemical deposition.
6. Silicon dioxide. From silane with oxygen, dichlorosilane, and nitrous oxide, silicon vapors can be deposited using chemical deposition.
7. Semiconductor devices. Semiconductor films, electrically insulating films are applied through chemical deposition.
8. Frost. In frozen air, the water vapor changes directly to ice, without first becoming a liquid.
9. Tools. Titanium nitride deposition is used to prevent tool wear.
10. Energy conservation and generation. Low E Coatings, Solar Absorption Coatings, Mirrors, Glass, Cells solar photovoltaic thin film, smart films are applied through deposition chemistry.
11. Acid rain. Nitrogen and sulfur oxide residues are released into the atmosphere by various industries, where they become nitric and sulfuric acid. These substances they fall as solid particles to the ground (dry deposition), or together with rain or snow. Acid rain has disastrous effects on the different ecosystems, both aquatic and terrestrial, in addition to increasing the corrosion of buildings.
12. Snow. In frozen air, the water vapor changes directly to ice, without turning into a liquid.
13. Silicon nitride. It becomes solid from silicon and ammonia, through chemical deposition.
14. Magnetic Films. They are applied through chemical deposition.
15. Optical films. Anti-reflective coatings, optical filters can be applied on various optical products (photography, filming, vision) through chemical deposition.
16. Tribological coating. Hard coatings, erosion resistant coatings, lubricating films are created through chemical deposition.
17. Reflective coatings. Mirrors and hot mirrors can be manufactured through chemical deposition.

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