Question

What is meant by vapor deposition?

(a) A wire or powder through melting flame is blown onto the surface to be protected

(b) Coating metal is vaporized electrically to deposit on the metals to be coated

(c) Hot rolling of two metals together to get a composite sheet

(d) Immersing native metal in a solution of the metal to be plated

The question was asked during an interview.

My question is taken from Corrosion Prevention topic in portion Corrosion Prevention of Corrosion Engineering

Answer 1

Right option is (b) Coating metal is vaporized electrically to deposit on the metals to be coated

The explanation is: Vapor deposition is a method of metal coating in that coating metal is vaporized electrically to deposit on the metals to be coated. It is usually used for high strength parts for missiles and rockets.