Point defects in metals

Imperfections and defects are unavoidable. These defects are driven by entropy since they increase the disorder of a system. In metals, defects can be vacancies or interstitials. Vacancies are empty sites in the lattice. Interstitials are when atoms occupy the sites between atoms (interstitials). The defects can be of the same type of atoms making up the lattice such as self-interstitials, or from different types of atoms as in substitutions or interstitial defects. These defects produce lattice strain in the vicinity of the defect.

[@upamast]

You're such a gifted teacher, Dr. Sparks! Thank you for your clear explanations.

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Heck ya! This feedback keeps me going

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thank you so much for your informative videos. helped me a lot on exams. learned more from you than hours listening to university professors tbh.

[@stephtarczyn]

When you talk about activation energy at the end- is that the energy required to form the interstitial/vacancy or the energy required to correct it? Or is that the same thing?

[@TaylorSparks]

Formation.

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Thank you so much you made it so clear to me.

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Where can I watch themodynamics of materials? Please tell me

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