Question

What are crystal defects in crystal? Classify the defects of crystals..
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Answer 1

Answer:

Crystal defect, imperfection in the regular geometrical arrangement of the atoms in a crystalline solid. These imperfections result from deformation of the solid, rapid cooling from high temperature, or high-energy radiation (X-rays or neutrons) striking the solid.

There are basic classes of crystal defects: ... Point defects include lattice vacancies, self-interstitial atoms, substitution impurity atoms, and interstitial impurity atoms. linear defects, which are groups of atoms in irregular positions. Linear defects are commonly called dislocations.

Answer 2

Point defects include the Frenkel type, the Schottky type, and the impurity type. The Frenkel defect involves a single ion, which is displaced from its normal lattice point and shifts to a nearby interstice, or space, between atoms in the lattice. In the Schottky defect, two ions of opposite sign leave the lattice.

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