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Q1 The energy for vacancy formation at for copper is 0.9 eV/atom; the atomic weight and density at for copper are 63.5 g/mol and 8.4g/cm 3 . The...
Q1
The energy for vacancy formation at for copper is 0.9 eV/atom; the atomic weight and density at for copper are 63.5 g/mol and 8.4g/cm3. The temperature T is varied and has the following values:
, 900, 1000 and 1100 °C.
Calculate the equilibrium number of vacancies per cubic meter for copper at temperatures given above.
Draw the temperature - number of defects curve using a proper scale on X (Temperature) & Y (No. of defects) axes.
What is the effect of temperature on the number of defects?
Q2
Compare the characteristics of all types of dislocations which you have studied with respect to Burger’s vector and direction of propagation.
