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Diffusion in Material Engineering Quiz

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Questions and Answers

What is diffusion?

Mass transport by atomic motion (correct)

Mass transport by molecular motion

Mass transport by gravitational motion

Mass transport by electromagnetic motion

In an alloy, where do atoms tend to migrate?

From regions of low concentration to regions of high concentration

They migrate randomly within the alloy

From regions of high concentration to regions of low concentration (correct)

They do not migrate in an alloy

In an elemental solid, what is the term for the migration of atoms?

Vacancy diffusion

Interstitial diffusion

Self-diffusion (correct)

Inter-diffusion

How is diffusion in gases and liquids primarily characterized?

Random (Brownian) motion Signup and view all the answers

What is the primary mechanism for diffusion in solids?

Vacancy diffusion or interstitial diffusion Signup and view all the answers

In material engineering, diffusion is primarily a result of which of the following?

Atomic motion Signup and view all the answers

What is the primary mechanism for diffusion in elemental solids?

Vacancy diffusion Signup and view all the answers

In an alloy, where do atoms tend to migrate over time?

From regions of high concentration to low concentration Signup and view all the answers

What primarily characterizes diffusion in gases and liquids?

Random (Brownian) motion Signup and view all the answers

Can diffusion be predicted and calculated in material engineering?

Yes, through mathematical models and simulations Signup and view all the answers