
Explore atomic to macro material structure, focusing on valence electrons and electronic structure. Demonstrate particle wave duality with double-slit and introduce x-ray diffraction and Bragg concepts for zombie lab.
Explore how electronegativity and valence electrons distinguish intramolecular and intermolecular bonding, covering covalent, ionic, polar covalent, metallic, and van der waals interactions with dipole concepts and mixed-character cases.
Analyze how annealing changes titanium structure and dislocation density, linking processing to properties and performance with SEM and diffraction insights, and discuss bonding types, polymer structures, and molecular interactions.
Explore how temperature and free energy balance create 0d point defects in crystals, including vacancies, substitution impurities, and interstitials.
Explore how impurities form extrinsic defects in crystals using Kroger-Vink notation, balancing charge and mass with vacancies and interstitials in the host lattice.
Explore one-dimensional line defects in crystals by examining edge and screw dislocations, their dislocation cores, Burgers vectors, and Burgers circuits to distinguish translation from rotation in crystal structure.
Explore edge and screw dislocations, using Burgers vectors and the right-hand rule to draw circuits around a dislocation. Learn how dislocation density influences mechanical properties.
In this course we will examine the fundamentals of the atomistic structure of materials and the effect of defects in these materials. Starting at the angstrom length scale we will first exam bonding specifically determining the difference between intramolecular and intermolecular interactions. Additionally, these interactions will be differentiated between the energy of interactions and electronegativity. We will then build upon these concepts to and apply this to X-Ray diffraction. Building up to the nanometer length scale we will examine the structural motifs in crystalline materials specifically how we develop unit cells of simple cubic, body centered cubic, and face centered cubic. Finally, we will examine 0, 1, 2, and 3D defects in materials. For 0D defects we will examine and investigate vacancies, interstitial, and how to calculate the equilibrium concentrations of these defects as well as the Arrhenius temperature dependence. Additionally, 0D Kroger-Vink notation for writing defects in ionic crystals. Both intrinsic and extrinsic defects will be investigated. For 1D defects we will focus primarily on edge and screw defects. These defects can be determined by drawing Burger’s circuits in a plane to find the type of defect. For 2D and 3D defects we will examine grain boundaries and voids.