This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: at its melting point, T=2800 C. Its energy for the formation of one pair of defect is 6 eV. Assume n/N = exp (-Q/2kT). 1 eV = 1.602x10-19 J, k=13.81x10-24 J/K= 86.20x10-6 eV/K n/N = exp [- 6/(2x86.20 x10-6 x 3073)]= exp (-11.325)=1.2x10-5 3. A dislocation loop shown below was observed. Indicate the portions of edge dislocation, screw dislocation and mixed dislocation. edge edge Direction of Scre Mix Edg Edg Scre 4. Two dimensional crystals of bubbles are shown below. Identify an irregularity of this crystal, which appears to be an extra-half plane....
View Full Document
- Spring '08