The concentration of vacancies in silicon at the solid-liquid equilibrium temperature of 1683 K .

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2. In a copper-nickel system as shown in figure, an alloy composition of 35 wt% Ni was cooled down from the temperature of 1300°C. Sketch the expected microstructures at the point a, b, c, d and e and briefly describe the development of these microstructures in the equilibrium cooling. L. L (35 Ni) 1300 L (32 Ni) a (46 Ni) a(43 Ni) L (24 Ni) d 1200 1100 20 30 40 50 Composition (wt% Ni) Temperature (°C))

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Chapter 4, Problem 4.16P

To determine

The concentration of vacancies in silicon at the solid-liquid equilibrium temperature of 1683 K.

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