Concepts in Materials Science Instructor: Esen Ercan Alp Winter 2009 Materials science, a branch of science dealing with structure, synthesis and utilization of materials is a hybrid science, representing and re-formulating knowledge gained by more traditional branches like chemistry, physics, biology, metallurgy, and engineering. However, as humankind’s abilities to comprehend, command and modify the properties of materials improved over the centuries, a distinct branch of science emerged around 1950’s and gained acceptance and recognition in universities and industrial research laboratories as a separate discipline. As the development of silicon based technologies and their impact on our present society is a well understood and much appreciated example, there are also numerous other cases where materials development is the critical component in various aspects of human life like health, economics, security, and leisure. In this class, Dr. Alp will reflect on his thirty years of experiences in dealing with materials issues. Grading is based on a term-project, one mid-term and a final exam (30 % each). 10 % will be given based on class interactions to encourage students to participate as full partners in the learning process. The books for reference are listed below, a more complete bibliography will presented at the beginning of the class: 1. Foundations of Materials Science and Engineering, 4th edition (2006) Willliam F. Smith and Javad Hashemi, McGraw Hill, 2. Materials Science and Engineering: An Introduction, William D., Jr. Callister, John Wiley & Sons, 3. Introduction to Solid State Physics, C. Kittel, 8th edition (2005), John Wiley and Sons, ISBN-0-471-4526-X Course Contents 1. 2. 3. 4. 5. 6. 7. 8. 9. Introduction Material classification : Is it still valid ? traditional classification of metals, ceramics and polymers transformation from one class to another nano-materials: Are they new ? Structure of atoms and the Periodic Table as a Tool atomic size electron count electron binding energies characteristic x-rays and fluorescence lines beyond the periodic table: elements at extreme conditions isotopes & their use in science, health and industry unstable elements: Is it worth synthesizing them ? Structure of materials crystals: polycrystals, single crystals, quasicrystals,nanocrystals amorphous materials and glasses nano-materials and thin films liquids methods of structure determination: microscopy, diffraction, x-ray and neutron scattering and spectroscopy, thermal and electrical properties Solidification and Defects Diffusion and thermally activated processes Mechanical properties and their modification elasticity and plasticity elastic constants tensor and speed of sound Mechanical properties of metals ductility, toughness, hardness, malleability, fatigue, creep, and fracture Phase diagrams New engineering materials: Polymers, Ceramics and Composites materials for Energy: Solar, hydrogen storage, tribology, Electrical, magnetic and optical properties of materials superconductors, thermoelectrics, magnetoresistance, multi-ferroics, carbon nano-tubes, meta-materials.