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Informationen zum Autor Thierry Duffar is professor at Grenoble Polytechnic Institute (France) where he received his PhD in chemical engineering. Professor Duffar is a member of various scientific committees including the International Organization of Crystal Growth and the International Union of Crystallography and he was chair of the organizing committee for 14th International Conference on Crystal Growth in Grenoble in 2004. Professor Duffar is the (co)author of more than 100 publications in refereed scientific journals. His current research interests include the electromagnetic processing of materials, the effect of electromagnetic and gravity fields on crystal growth processes, studies on structural defect generation in materials and the means to control them and the elaboration of photovoltaic silicon. Klappentext The demand for large, high-quality single crystals has increased rapidly as a result of the growing semiconductor and optics industry, where perfect single crystals are used as substrates or components for devices.Crystal Growth Processes Based on Capillarity covers all crystal growth techniques and explains why and how they are dependent on liquid surface phenomena, or capillarity. Each chapter addresses fundamental capillary effects, detailed experimental developments, technically important processes, and associated software. The book includes:* Basic principles of capillarity, wetting and growth angle data and detailed mathematical treatments* Shape stability in capillary crystal growth, including Verneuil and Czochralski techniques* Czochralski process dynamics and control* Floating Zone crystal growth* Shaped crystal growth of silicon and sapphire, micro-pulling down techniques* Vertical Bridgman and dewetting processes* Marangoni convection in crystal growthWith over 25 years experience, Duffar brings together a good balance of theory and experimental techniques, making this a resource for all crystal growers in both research and in industry. Zusammenfassung Crystal Growth Processes Based on Capillarity closely examines crystal growth technologies, like Czochralski, Floating zone, and Bridgman. The up-to-date reference contains detailed technical and applied information, especially on the difficulty of crystal shape control. Inhaltsverzeichnis Preface. Introduction. Acknowledgements. Nomenclature. Contributors. 1. Basic Principles of Capillarity in Relation to Crystal Growth ( Nicolas Eustathopoulos, Béatrice Drevet, Simon Brandon and Alexander Virozub ). 1.1 Definitions. 1.1.1 Characteristic Energies of Surfaces and Interfaces. 1.1.2 Capillary Pressure. 1.1.3 Surface Energy versus Surface Tension. 1.2 Contact Angles. 1.2.1 Thermodynamics. 1.2.2 Dynamics of Wetting. 1.2.3 Measurements of Contact Angle and Surface Tension by the Sessile Drop Technique. 1.2.4 Selected Data for the Contact Angle for Systems of Interest for Crystal Growth. 1.3 Growth Angles. 1.3.1 Theory. 1.3.2 Measurements of Growth Angles: Methods and Values. 1.3.3 Application of the Growth Angle Condition in Simulations of Crystal Growth. 1.3.4 Summary. Acknowledgements. References. 2. The Possibility of Shape Stability in Capillary Crystal Growth and Practical Realization of Shaped Crystals ( Vitali A. Tatartchenko ). 2.1 Crucible-Free Crystal Growth - Capillary Shaping Techniques. 2.2 Dynamic Stability of Crystallization - the Basis of Shaped Crystal Growth by CST. 2.2.1 Lyapunov Equations. 2.2.2 Capillary Problem - Common Approach. 2.2.3 Equation of Crystal Dimension Change Rate. 2.2.4 Equation of Crystallization Front Displacement Rate. 2.2.5 Stability Analysis in a System with Two Degre...
