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Following three planes (P(1), P(2), P(3)...

Following three planes `(P_(1), P_(2), P_(3))` in an fcc unit cell are shown in the figure below. Consider the following statements and choose the correct option/options that follow:

A

`P_(1)` contains no three dimensional voids .

B

`P_(2)` contains only octahedral voids.

C

`P_(3)` contains both octahedral and tetrahedral voids .

D

`P_(3)` contains tetrahedral voids .

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
A `P_(1)` represents one of the clo-packed layer having triangular voids only.
B. `P_(2)` contains location of `Ovs` (edge centers of unit cell).
C. `P_(3)` contains 3OVs locations (one at body center and two at edge center. Also, plane `P_(3)` contains the body diagonals, hence it contains TVs location (TVs lie at body diagonal).
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