1. Point defects- such as vacancies and interstitials– are examples of crystalline defects. Why are
they called “crystalline� Are there no vacancies and interstitialsin non- crystalline solids? Justify
your answer.Â
2. How do grain boundaries influence the chemical; andmechanical properties of a metal?Â
(must mention about the corrosion properties)
3. How would you expect the diffusion process tochange if the slide was changed from amorphous
to crystalline glass? Â
