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A unit cell has several interstitial voids ( or spaces or sites ) . There are two types of interstitial voids in FCC and BCC
A unit cell has several interstitial voids or spaces or sites There are two types of interstitial voids in FCC and BCC cells, namely, octahedral and tetrahedral. However, the octahedral and tetrahedral voids in BCC are not regularly shaped but distorted.
a How manydistorted octahedral and tetrahedral voids are there in a BCC cell?
b The centre of one of the tetrahedral voids in a BCC unit cell is located at
i Name the Miller indices for the horizontal plane that passes through the centre of the void.
ii Calculate the radius of the largest atom that could fit in the void if the radius of the parent atom in this lattice is nm Use a diagram to aid in your analysis.
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