Show all your work. Start each problem on a separate sheet of paper. Good luck!

Question

Show all your work. Start each problem on a separate sheet of paper. Good luck! ___The Burger's vector of a screw dislocation is perpendicular to the dislocation line. ___Metallic bonding is directional. ___Domain walls are area defects in ferroelectric materials. ___Vacancy diffusion is normally more rapid than interstitial diffusion. ___Interstitial atoms are point defects. ___The plane (010) in the cubic unit cells is parallel to y axis. ___The diffusion of C in BCC iron is interstitial diffusion while the diffusion of C in FCC iron is vacancy diffusion. ___There are 16 Bravais lattices to describe the crystal unit cell.

Explanation / Answer

1. false

2. flase                  (non directional bond )

3. false

4. false

5. true

6, false

7.

8. false

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