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Metallurgical Engineering
Physical Metallurgy
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The critical nucleus size (in mm) when copper melt is under-cooled by 100K is Given data: Melting point: 1356 K Density: 8900 kg.m -3 Solid-liquid interfacial energy: 0.5 Jm -2 Latent heat of freezing: 13000 J. mol -1 Molar volume: 7 × 10 -6 m 3 mol -1
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