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Questions and Answers

Which of the following is a result of casting molten material?

Grain boundaries (correct)

Stacking faults

Lattice distortion

Substitutional defect

What is an imperfection in a crystal that involves several atoms/ions and occurs over a finite volume of the crystalline material?

Interstitial defect

Extended defect (correct)

Substitutional defect

Vacancy

What is lattice distortion?

A point defect produced when an atom is placed into the crystal at a site that is normally not a lattice point

An atom or an ion missing from its regular crystallographic site

Imperfections, irregularities, and defects present in real crystals (correct)

A point defect produced when an atom is removed from a regular lattice point and replaced with a different atom

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Questions and Answers

Which of the following is a result of casting molten material?

What is an imperfection in a crystal that involves several atoms/ions and occurs over a finite volume of the crystalline material?

What is lattice distortion?

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