Learning objectives
The course is meant to present the main physico-chemical notions as relevant to the technology of avanced materials
Prerequisites
Triennial degree in physics and/or triennial degree in science and tecnology of materials
Course unit content
<br />Reminds of phenomenological thermodynamics: equilibrium conditions of <br />multiphase systems, multiple equilibria, estimates of thermodynamic <br />quantities. First-order phase transitions and their driving forces. <br />Homogeneous and heterogeneous nucleation: thermodynamic (capillary theory) <br />and kinetic aspects.<br />Elements of fluid dynamics: mass, heat and momentum transport equations; <br />two-phase system transitions and the general Stefan problem. Approximate <br />solutions of the Stefan problems. Stagnant boundary layer theory.<br />Coupled fluid dynamic and kinetic aspects in first-order phase <br />transitions. Various applications to the growth technology of crystalline <br />materials.<br />The stability conditions of growing crystal interfaces: constitutional <br />supercooling and brief account of Mullin-Sekerka morphological stability <br />theory. Compositional stability in growing crystals: impurity/dopant <br />concentration profiles; isotropic and anisotropic segregation at macro- <br />and micriscopic level. Solid-state diffusion. Main growth techniques of <br />bulk crystals (melt, solution and vapour growth).<br />
Bibliography
Lecture notes. As to further suggested reading:<br />1) G.W.Castellan, Physical Chemistry, Addison-Wesley, London, 1964 <br /> (selected chapters);<br />2) R.B.Bird, W.E.Steward, E,N.Lightfoot, Transport Phenomena, Wiley, New <br /> York, 1960 (selected chapters);<br />3) P.Hartman ed., Crystal Growth: an Introduction, North-Holland, <br /> Amsterdam, 1973 (selected chapters).
Teaching methods
Oral lectures and oral examinations
