Podcast
Questions and Answers
What are the two essential conditions for an atom to make a move during diffusion?
What are the two essential conditions for an atom to make a move during diffusion?
What is the name of the mechanism that involves the interchange of an atom from a normal lattice position to an adjacent vacant lattice site?
What is the name of the mechanism that involves the interchange of an atom from a normal lattice position to an adjacent vacant lattice site?
What is the prerequisite for vacancy diffusion to occur?
What is the prerequisite for vacancy diffusion to occur?
What happens to the diffusing atoms and vacancies during vacancy diffusion?
What happens to the diffusing atoms and vacancies during vacancy diffusion?
Signup and view all the answers
What type of diffusion involves atoms migrating from an interstitial position to a neighboring empty one?
What type of diffusion involves atoms migrating from an interstitial position to a neighboring empty one?
Signup and view all the answers
What is a necessary condition for significant concentrations of vacancies to exist in metals?
What is a necessary condition for significant concentrations of vacancies to exist in metals?
Signup and view all the answers
Which type of diffusion occurs when impurity atoms substitute for host atoms?
Which type of diffusion occurs when impurity atoms substitute for host atoms?
Signup and view all the answers
What is the direction of motion of vacancies during vacancy diffusion?
What is the direction of motion of vacancies during vacancy diffusion?
Signup and view all the answers
What is the name of the process that involves the movement of atoms in a lattice?
What is the name of the process that involves the movement of atoms in a lattice?
Signup and view all the answers
What is the result of the interaction between diffusing atoms and vacancies during vacancy diffusion?
What is the result of the interaction between diffusing atoms and vacancies during vacancy diffusion?
Signup and view all the answers