(Struc&prop of Mat)
If homogeneous nucleation occurs at 900°C in copper(Tmp=1085°C)
a. Calculate the critical radius size given that the latent heatof fusion is –1.77 × 109 J/m3 and surface free energy is 0.200 J/m2.
b. Knowing copper has an fcc structure with lattice constant of0.3597 nm, estimate the number of atoms in the nucleus
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