Engineering Materials Science Structure and Properties of Engineering Materials Properties of Materials
Consider the following data for copper:
Energy for vacancy formation is 0.9 eV/atom
Atom weight is 63.5 g/mol
Density is 8.4 g/cm3 at 1000°C
The equilibrium number of vacancies per cubic meter at 1000°C will be1
3.2 × 1020
2
3.2 × 1025
3
2.2 × 1020
4
2.2 × 1025