For body-cubic centred bcc W the easy-glide direction of dislocations is 111 in preference to 110 36 the preset scanning direction in friction. Niobium Nb has the BCC crystal with a lattice parameter of a 3294 nm Find the planar concentrations of atoms per m2 of the 100 110 and 111 planes. Unit Cell Chemistry Atomic Radius Density Edge Length Calculations Unit Cell The Unit Atom - 1 - 10 a. . Calculate the spacing between the 111 plane in BCC Fe. It is the plane going through points 110 011 and 101similar planes are also called 111 planesit is the plane we get after cutting a tetrahedron shape part from the unit. Interplanar cystal spacing of cubic crystal families is defined as d h k l a h 2 k 2 l 2. Answer 1 of 3. The 100 plane has. 110 a unit cell length. Chemical Engineering questions and answers. EduRev Mechanical Engineering Question is. Draw 110 and 111 crystallographic planes in a BCC unit cell and