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total numbers of octahedral voids in ccp per atom

total numbers of octahedral voids in ccp per atom

Grade:12

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
8 years ago

The close packed structures have both octahedral and tetrahedral voids. In a ccp structure, there is 1 octahedral void in the centre of the body and 12 octahedral void on the edges. Each one of which is common to four other unit cells. Thus, in cubic close packed structure.

Octahedral voids in the centre of the cube =1

Effective number of octahedral voids located at the 12 edge of = 12 × 1/4 = 3

?Total number of octahedral voids = 4


thanks and regards

sunil kr

askIITian faculty

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