Solid StateMedium
Question
Following three planes (P1, P2, P3) in an fc unit cell are shown in the figure below. Consider the following statements and choose the correct option/options that follow:
Options
A.P1 contains no three dimensional voids.
B.P2 contains only octahedral voids.
C.P3 contains both octahedral and tetrahedral voids.
D.All of these
Solution
A. P1 represent one of the close-packed layer having triangular voids only.
B. P2 contains location of OVs (edge centers of unit cell).
C. P3 contains 3 OVs locations (one at body center and two at edge center). Also, plane
P3 contains the body diagonals,hence it contains TVs location(TVs lie at body diagonal)
B. P2 contains location of OVs (edge centers of unit cell).
C. P3 contains 3 OVs locations (one at body center and two at edge center). Also, plane
P3 contains the body diagonals,hence it contains TVs location(TVs lie at body diagonal)
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