Exploring Nanoscience and Nanotechnology with Dr. Abeer Alshammari
Delve into the fascinating world of nanoscience and nanotechnology through the elective course PHYS 476 with Dr. Abeer Alshammari. Learn about the unique properties of nanomaterials, including microstructure, defects, dislocations, twins, stacking faults, and more. Discover how nano-dimensions impact material behavior, such as elastic properties and melting points, and explore the exciting realm of magnetic, electrical, optical, thermal, and mechanical properties at the nanoscale.
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PHYS 476: Introduction to Nanoscience and Nanotechnology (Elective course) - 2(2+0+0) Lecturer: dr. Abeer Alshammari Room no. 213- building 5 aalshammri@ksu.edu.sa 1 DR.ABEER ALSHAMMARI 2021
Unique Properties of Nanomaterials 2.1 Microstructure and defects in nanocrystalline materials 2.1.3 Grain boundaries, triple junctions and disclinations 2.1.1 Dislocations 2.1.2 Twins, stacking faults and voids 2.2 Effect of nano-dimensions on materials behaviour 2.2.6 Magnetic properties 2.2.1 Elastic properties 2.2.2 Melting point 2.2.7 Electrical properties 2.2.3 Diffusivity 2.2.8 Optical properties 2.2.4 Grain growth characteristics 2.2.9 Thermal properties 2.2.10 Mechanical properties 2.2.5 Enhanced solid solubility 2 DR.ABEER ALSHAMMARI 2021
2.1 MICROSTRUCTURE AND DEFECTS IN NANOCRYSTALLINE MATERIALS 3 DR.ABEER ALSHAMMARI 2021
2.1.1 Dislocations Line defects (one dimensional defects), or dislocations, are lines along which whole rows of atoms in a solid are arranged anomalously. The resulting irregularity in spacing is most severe along a line called the line of dislocation. Dislocation is perhaps the most important crystalline defect , they can weaken or strengthen solids. 4 DR.ABEER ALSHAMMARI 2021
2.1.2 Twins, stacking faults and voids 5 DR.ABEER ALSHAMMARI 2021
2.1.3 Grain boundaries, triple junctions and disclinations 6 DR.ABEER ALSHAMMARI 2021
7 DR.ABEER ALSHAMMARI 2021
2.2 EFFECT OF NANO-DIMENSIONS ON MATERIALS BEHAVIOUR 2.2.1 Elastic properties 8 DR.ABEER ALSHAMMARI 2021
2.2.2 Melting point 9 DR.ABEER ALSHAMMARI 2021
