(a) Calculate the fraction of atom sites that are vacant for copper (Cu) at its melting temperature of 1084 C (1357 K). Assume an energy for vacancy formation of 0.90 eV/atom. (b) Repeat this calculation at room temperature (298 K). (c) What is the ratio of Nv /N (1357 K) and Nv/N (298 K)?

(a) Calculate the fraction of atom sites that are vacant for copper (Cu) at its melting temperature of 1084 C (1357 K). Assume an energy for vacancy formation of 0.90 eV/atom. (b) Repeat this calculation at room temperature (298 K). (c) What is the ratio of Nv /N (1357 K) and Nv/N (298 K)?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

The Space Lattice and Unit Cells

Every matter consists of atoms, molecules, and ions. If these atoms, molecules, and ions (micro-particles) are represented in a three-dimensional space-occupying certain specific points in space, then these arrangements are termed as space lattices and the specific points which are being occupied by atoms, molecules and ions are termed as lattice points. The atoms, molecules, and ions at the lattice points are generally grouped in a regular fashion and repeat periodically at the three-dimensional space.

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Question 5
(a) Calculate the fraction of atom sites that are vacant for copper (Cu) at its melting temperature of 1084 C (1357 K). Assume an energy for vacancy formation of
0.90 eV/atom.
(b) Repeat this calculation at room temperature (298 K).
(c) What is the ratio of Nv /N (1357 K) and Nv/N (298 K)?

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