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1. What is an atom ?

1. What is an atom ?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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1. What is an atom 7 2. Explain briefly the followings: (i) Unit cell (ii) Space lattice (iv) Crystallographic planes. (ii) Lattice parameters 3. Discuss briefly the following structures for metallic elements: () Body centred cubic (BCC) (ii) Face centred cubic (FCC) (iii) Hexagon close-packed (HCP) 4. What are Miller indices ? What is procedure for finding Miller indices? 5. Discuss important features of Miller indices. 6. How are crystallographic defect classified ? 7. Explain briefly the following point defects : (1) Vacancy (ii) Schottky imperfections (iv) Frenkel defect. (ii) Interstitialcy 8. Describe briefly the following line defects (disilocations) : (1) Edge dislocations. (ii) Screw dislocations. 9. What is Berger's vector ? 10. Give the comparison between edge disloçation and screw dislocations. 11. Discuss briefly the following : (1) Surface defects. (ii) Volume defects or three dimensional defects 12. Explain briefly the following : () Theory of dislocations. (i) Role and significance of dislocation. apter three MECHANICAL PROPERTIES Cn otol ore:.
Transcribed Image Text:1. What is an atom 7 2. Explain briefly the followings: (i) Unit cell (ii) Space lattice (iv) Crystallographic planes. (ii) Lattice parameters 3. Discuss briefly the following structures for metallic elements: () Body centred cubic (BCC) (ii) Face centred cubic (FCC) (iii) Hexagon close-packed (HCP) 4. What are Miller indices ? What is procedure for finding Miller indices? 5. Discuss important features of Miller indices. 6. How are crystallographic defect classified ? 7. Explain briefly the following point defects : (1) Vacancy (ii) Schottky imperfections (iv) Frenkel defect. (ii) Interstitialcy 8. Describe briefly the following line defects (disilocations) : (1) Edge dislocations. (ii) Screw dislocations. 9. What is Berger's vector ? 10. Give the comparison between edge disloçation and screw dislocations. 11. Discuss briefly the following : (1) Surface defects. (ii) Volume defects or three dimensional defects 12. Explain briefly the following : () Theory of dislocations. (i) Role and significance of dislocation. apter three MECHANICAL PROPERTIES Cn otol ore:.
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