2. Crystal Structure

atom positions in cubic unit cellBCC unit cellcoordinates of eight corners:(0, 0, 0) (1, 0, 0) (0, 1, 0) (0, 0, 1)(1, 1, 0) (1, 0, 1) (0, 1, 1) (1, 1, 1)coordinate of the center: (½, ½, ½)direction index – the vector components of thedirection resolved along each of thecoordinate axes and reduced to the smallestintegersall parallel direction vectors have the samedirection indices8