Hello everyone. My name is Kyu Hyoung Lee, professor at Yonsei University. Welcome to this course, Advanced the Functional Ceramics. This course includes the five main chapters, the background of ceramics, defects in crystals, synthesis of ceramics, and properties and applications of ceramics part I and II. In the first chapter, the background of ceramics, we will talk about the definition of ceramics including compositions, crystal structures, and classification. We will also discuss about materials science at the nanoscale and the several types of nanomaterials, including zero-dimensional nanoparticles, one-dimensional nanowires, two-dimensional thin films, and three-dimensional nanocomposites. Because nanostructuring is one of the most important approaches to develop a number functional ceramics with enhanced physical and chemical properties. Besides the nanostructuring, the defect engineering is another important approach to realize a number of functions of ceramics with enhanced properties. So in the second chapter the defect in crystals, so we will review the defect in crystals including zero-dimensional point defect a solutes or impurity atom, which will alter the crystal pattern. One-dimensional line defect. Dislocations: They're lines along which the crystal pattern is broken. Two-dimensional planar defect, such as external surface and grain and phase boundaries, which distincts crystallites. Three-dimensional volume defect such as precipitates, voids, and inclusions to which change the crystal pattern over a finite volume. Also discuss about the relationship between several physical properties and defect structures. Then we will talk about the several synthesis technology of ceramics, of powders, bulks, and thin films. In the first section for powders, we are going to talk about the ceramic powder processing, such as comminution, crushing and milling, and advanced milling technologies which can be used for nanostructuring and defects engineering of ceramics. The ceramic powder, synthesis technologies such as; solid state reaction, combustion synthesis, co-precipitation, spray drying, sol-gel process, the hydrothermal synthesis, and rapid solidification process. For bulk ceramics, we are going to talk about the ceramic powder compaction, such as uniaxial pressing and cold isostatic pressing. Sintering techniques, including solid state sintering, liquid state sintering, and especially for fast sintering technique, which can be used for nanostructuring and defective engineering approaches such as; microwave sintering, shock wave consolidation, transformation assisted consolidation, hot isostatic pressing, hot pressing, and the spark plasma sintering. For thin film ceramics. So there are two main deposition technologies. The first is chemical deposition, such as spin coating and chemical vapor deposition. The second is physical deposition, such as cathodic arc deposition, electron beam physical vapor deposition, evaporation deposition, sputtering, pulsed laser deposition, and molecular beam epitaxy. Finally, we are going to talk about the properties and applications of ceramics. So in the first section, we are going to talk about the ionic and mixed conduction in ceramics, including oxide-ion, proton, electron/hole conduction. Also we will discuss about the several important physical properties of ceramics and their applications, including dielectric ceramics such as piezoelectric, paraelectric, and feroelectric, and conducting ceramics focusing on the transparent conductive oxide, the electride, thermo-electric ceramics, and magnetic ceramics. Anyway, the main purpose of this course is to provide you the fundamentals of theoretical and experimental background for developing the number functional ceramics, including material design and synthesis. So this course included the five chapters. Welcome again to join in this course. Thank you very much.