The Oji International Seminar on Morphology and Growth Unit of Crystals was held on August 25-31, 1985 at Zao Astraea Hotel, Yamagata. 17 scientists and their families from 7 countries joned 45 scientists (plus 2 accompanying members) from Japan for the seminor, all staying in the same hotel . There were 3 1 papers presented orally, and 31 presented with posters. Sessions were held on: He Crystals, Equilibrium Form, Ultra-Fine Particles, Quasicrystals, Melt Interface, Morphological Stability, Snow Crystals, Multi-component Systems and Diffusion Boundary Layers, Growth Unit, Step Patterns, Real Systems, and Structure and Morphology. The seminar marked an important point in the history of the basic science of crystal growth: experimental evidence proving the existence of quasi-liquid layet or liquid-crystal-like boundary layer around a growing crystal were reported concurrently on different materials, by different methods and from differernt research groups. As a result, theoreticians must now reconsider the crystal growth models which have been based on much simpler, naked solid-liquid interface models.
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