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would you expect frenkel defects for anions to exist in ionic ceramics in relatively large concentrations? why or why not?

Sagot :

No because anions are very large and will most likely not exist as an interstitial impurity.

What is interstitial impurity?

 A point defect that develops when an impurity atom takes up residence in an octahedral or tetrahedral hole in the lattice of adjacent atoms.

Give an example of an interstitial impurity flaw?

It is a specific kind of point flaw. It can be fixed into a lattice's tetrahedral or octahedral hole and is quite tiny. For instance: Interstitial impurities are bound to carbon atoms with steel that contains iron.

What does the chemical term "interstitial" mean?

All atoms that are interstitials are positioned between other atoms rather than where they normally would be. A self interstitial atom in an elemental fcc crystal is depicted in the picture as a straightforward example.

                                 Interstitials are found in the spaces between the spheres of the crystal, which can be thought of as a periodic arrangement of hard spheres.

Learn more about interstitial impurity

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