Physical Vapor Deposition (PVD) is a crucial process in various industries, offering two main types: occlusive and functional.
What are the Two Types of PVD? (Explained in 4 Key Points)
1. Occlusive PVD
Occlusive PVD involves creating a very thin layer of material through the process of physical vapor deposition.
This technique is broad and encompasses various specific methods.
The primary goal of occlusive PVD is to create a barrier or seal on the surface of a material.
This type of PVD coating is commonly used for applications requiring corrosion resistance, wear resistance, or chemical resistance.
2. Functional PVD
Functional PVD also involves creating a thin layer of material through physical vapor deposition.
However, the purpose of functional PVD is to enhance the functionality or performance of the material.
This can include improving its hardness, lubricity, or optical properties.
Functional PVD coatings are commonly used in industries such as automotive, aerospace, and electronics.
3. PVD vs. CVD
It is important to note that PVD and CVD (Chemical Vapor Deposition) are two different methods of applying coatings to the surface of a material.
PVD is based on physical vapor deposition, while CVD is based on chemical vapor deposition.
The materials they can deposit, the conditions under which they are applied, and the properties of the coatings they produce can differ.
4. Applications and Benefits
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