Aluminium melts at

PHYSICS · Subjective · Fermi University Physics · Condensed Matter, Materials & Soft Matter · Crystal structure, bonding and diffraction · Crystal structure, bonding and diffraction

Condensed Matter Physics, Ch What holds a solid together, and where its atoms sit

Problem

Aluminium melts at

933.5\,\mathrm{K}

. Using the rule found in Section 1.1, that

E_{\rm coh}/k_BT_m

is near

30

for four of the five solids it examined, estimate aluminium's cohesive energy per atom. The measured value is

3.39\,\mathrm{eV}

per atom. How far off is the estimate?

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