3): Answer the followings (Only Ten)? 1. In Taylor-Orowan dislocation, The amount of force required to form and move an edge dislocation is less, while speed of movement of an edge dislocation is bigger. True or False. 2. Edge dislocation can move by -----, whereas Screw dislocations can move by ------. 3. The -- is the motion of the interface between two metals that occurs as a consequence of the difference in diffusion rates of the metal atoms.

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Chapter5: Further Applications Of Newton's Laws: Friction, Drag, And Elasticity
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Q(3): Answer the followings (Only Ten)?
1. In Taylor-Orowan dislocation, The amount of force required to form
and move an edge dislocation is less, while speed of movement of an
edge dislocation is bigger. True or False.
2. Edge dislocation can move by -----, whereas Screw dislocations can
move by ------.
3. The -------- is the motion of the interface between two metals that
occurs as a consequence of the difference in diffusion rates of the
metal atoms.
4. Burger vector is used to denote ------- and -------- of dislocations.
5. The number of frenkel defect is proportional to ---.
6. Exciton can transport - without transporting
7. Frankel Defect is a type of -- defect.
8. As the temperature rises, the rate of vacancy diffusion in metals:
a) increases, b) decreases, c) remains the same, d) may increase or
decrease.
9. The following mechanism contributes very little the diffusivity.
a)Vacancy, b)Interstitial, c)Substitutional, d)Self-diffusion.
10. In Fick's first law the concentration is change with respect to ----in
арасе.
11. In the case of steel hardening by Carburization carbon permit to
diffuse into iron by --
12. Diffusion is driven by ------ and ------.
Transcribed Image Text:Q(3): Answer the followings (Only Ten)? 1. In Taylor-Orowan dislocation, The amount of force required to form and move an edge dislocation is less, while speed of movement of an edge dislocation is bigger. True or False. 2. Edge dislocation can move by -----, whereas Screw dislocations can move by ------. 3. The -------- is the motion of the interface between two metals that occurs as a consequence of the difference in diffusion rates of the metal atoms. 4. Burger vector is used to denote ------- and -------- of dislocations. 5. The number of frenkel defect is proportional to ---. 6. Exciton can transport - without transporting 7. Frankel Defect is a type of -- defect. 8. As the temperature rises, the rate of vacancy diffusion in metals: a) increases, b) decreases, c) remains the same, d) may increase or decrease. 9. The following mechanism contributes very little the diffusivity. a)Vacancy, b)Interstitial, c)Substitutional, d)Self-diffusion. 10. In Fick's first law the concentration is change with respect to ----in арасе. 11. In the case of steel hardening by Carburization carbon permit to diffuse into iron by -- 12. Diffusion is driven by ------ and ------.
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