Manufacture and characteristics of pastilles and their coating by crystallization process [Elektronische Ressource] / von Jung-Woo Kim

MANUFACTURE AND CHARACTERISTICS OF PASTILLES AND THEIR COATING BY CRYSTALLIZATION PROCESS DISSERTATION zur Erlangung des akademischen Grades Doktor-Ingenieur (Dr.-Ing.) genehmigt durch die Mathematisch-Naturwissenschaftlich-Technische Fakultät (Ingenieurwissenschaftlicher Bereich) der Martin-Luther-Universität Halle-Wittenberg von Herrn M.Sc. Jung-Woo Kim geb. am 20.08.1972 in KyoungNam / Süd Korea Dekan der Fakultät: Prof. Dr. Ludwig Staiger Gutachter: 1. Prof. Dr. -Ing. habil. Joachim Ulrich 2. Prof. Dr. habil. Karsten Mäder 3. Dr. -Ing. Ulrich Teipel Halle (Saale), den 15. 12. 2003 urn:nbn:de:gbv:3-000006229[http://nbn-resolving.de/urn/resolver.pl?urn=nbn%3Ade%3Agbv%3A3-000006229] CONTENTS CONTENTS 1. INTRODUCTION ……………………………………………......…………... 1 2. TECHNICAL BACKGROUND AND THEORY ………………………….. 3 2.1. Melt solidification ……………………………………………………..... 3 2.1.1. Technical background of melt solidification processes ………..…. 3 2.1.2. Approximation of crystallization rate ………………………..…… 5 2.1.3. Degree of deformation ………………………………………..…... 5 2.2. Porosity ……………………………………………………………..…... 7 2.3. Nucleation and crystal growth in solution …………………………..….. 11 2.3.1. Nucleation ……………………………………………………..….. 11 2.3.1.1. Types of nucleation …………………………………..……... 11 2.3.1.2. Kinetic of nucleation …………………………………..……. 12 2.3.1.3. Surface nucleation ……………………………………..……. 14 2.3.2.