Packing fraction is minimum in which of the following?
Face Centre Cubic
Body Centre Cubic
Simple Cubic Close packing
Hexagonal Close Packing
We know that packing fraction of FCC and HCP is 74%, that of BCC is 68% and that of Simple Cubic is 52%
So, simple cubic has the minimum packing fraction.
Calculate the efficiency of packing in case of a metal crystal for
(i) Simple cubic
(ii) Body - centred cubic
(iii) Face-centred cubic (with the assumptions that atoms are touching each other).
Whichof the following lattices has the highest packing efficiency (i)simple cubic (ii) body-centred cubic and (iii) hexagonal close-packedlattice?