Ask
Login
0
29kviews
Draw the unit cell of HCP. What is the coordination number, atomic radius, and effective number of atoms per unit cell? Also calculate the packing factor.
written 8.7 years ago by gravatar for teamques10 teamques10 ★ 69k •   modified 8.7 years ago

Mumbai university > FE > SEM 1 > Applied Physics 1

Marks: 7M

Year: Dec 2012
engineering physics
ADD COMMENT EDIT
1 Answer
1
1.5kviews
written 8.7 years ago by gravatar for teamques10 teamques10 ★ 69k

enter image description here

1) Co-ordination Number:-

Each atom is positioned in the empty space formed by

  • Three adjacent atoms of the top layer

  • Three adjacent atoms in the bottom level and

  • Surrounded by six neighboring atoms.

  • Thus, 12 atoms are in contact with each atom.

    Hence, Co-ordination Number = 12

2) Atomic Radius:- …

Create a free account to keep reading this post.

and 4 others joined a min ago.

ADD COMMENT EDIT
Please log in to add an answer.