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VOLUME 55 (1992) | ISSUE 3 | PAGE 170
Kinetics of layer-by-layer growth and formation of the structure of icosahedral phases
The layer-by-layer growth of an icosahedral quasicrystal from the melt is analyzed. The possibility of a congruent formation of a periodic crystal (with the approximant structure) is analyzed for various degrees of supercooling. The choice of mechanism for stabilizing the icosahedral phase (the mechanism involving the internal energy or the mechanism involving the entropy) predetermines the atomic structure which forms at a small degree of supercooling.