Metallurgical Engineering > GATE 2026 > Nucleation
A given volume of liquid is undercooled just below the melting temperature to form a spherical solid nucleus (consider homogeneous nucleation). The Gibbs free energy of solidification (ΔGv) is (− 0.5 × 108) J/m3. The solid-liquid interfacial energy (γ) is isotropic and its value is 0.1 J/m2.
The critical nucleus size for a stable nucleus is __________ nm (answer in integer).
The critical nucleus size for a stable nucleus is __________ nm (answer in integer).
Correct : 4
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