What Does Vaporization Mean?
Vaporization is the transition of matter from a solid or liquid phase into a gaseous (vapor) phase. There are two types of vaporization: evaporation and boiling.
In the context of corrosion protection, the process of vaporization is mainly used to apply coatings to metal.
Corrosionpedia Explains Vaporization
There are two commonly used evaporation technologies:
- E-beam Evaporation: In this method, an electron beam is aimed at the source material; this caused local heating and evaporation.
- Resistive Evaporation: In this method, the source material is placed in a tungsten boat, which is then heated electrically with a high current to cause evaporation.
Many materials are restrictive in terms of which evaporation method can be used. This typically depends on the material's phase transition properties.
Vaporization uses a strong vacuum environment and is therefore capable of producing very high purity thin films. Moreover, the deposition rate is high, reducing damage to the substrate during deposition. This method is simple and inexpensive.