Physical Vapor Deposition (PVD) Quiz

What does PVD stand for in materials engineering?

• Pressure Vacuum Design

• Physical Vapor Deposition

• Plasma Vector Dynamics

• Particle Velocity Determination

Which of the following is a common method used in PVD to create a vapor for coating?

• Combustion

• Sputtering

• Oxidation

• Polymerization

In PVD, what happens to the material after it is vaporized and before it forms a thin film?

• It condenses on the substrate.

• It undergoes a chemical reaction.

• It is collected and recycled.

• It is cooled in a separate chamber.

What is the purpose of creating a vacuum environment in PVD processes?

• To increase the vapor pressure of the material.

• To decrease the likelihood of chemical reactions with air.

• To make the substrate more reactive.

• To reduce the temperature of the substrate.

Which of the following is a characteristic advantage of coatings produced by PVD?

• High porosity

• High thermal expansion

• High hardness and wear resistance

• High electrical conductivity

Why is substrate temperature an important parameter in PVD?

• It directly affects the deposition rate.

• It changes the vapor pressure of the material.

• It influences the microstructure and properties of the film.

• It is required to initiate the vaporization process.

What is the term for the process of bombarding a material with ions to remove particles in PVD?

• Evaporation

• Etching

• Sputtering

• Imploding

Which of the following materials is typically used as a 'target' in the sputtering process of PVD?

• Plastic

• Wood

• Metal

• Glass

What is the name of the PVD process that involves using a laser to ablate the material from the target?

• Laser Beam Evaporation

• Laser Sintering

• Laser Casting

• Pulsed Laser Deposition

In the context of PVD, what does the 'mean free path' of vaporized particles refer to?

• The average distance a particle travels before it evaporates.

• The distance between the vapor source and the substrate.

• The average distance a particle travels before colliding with another particle.

• The path a particle takes as it moves in a vacuum chamber.