Unit 2102: Chemistry of Materials

1. Introduction to Chemistry of Materials

• Overview of material chemistry
• Fundamental concepts: structure-property relationships
• Types of materials: metals, ceramics, polymers, composites
• Importance of material chemistry in applications (engineering, medicine, electronics)

2. Atomic Structure and Bonding

• Atomic structure and electron configuration
• Periodic table overview relevant to bonding
• Types of chemical bonds:
  • Ionic bonding
  • Covalent bonding
  • Metallic bonding
• Influence of bonding on material properties (strength, conductivity, ductility)

3. Crystal Structures and Symmetry

• Crystalline vs. amorphous materials
• Unit cells and lattice parameters
• Seven crystal systems (cubic, tetragonal, orthorhombic, etc.)
• Symmetry operations (rotation, reflection, inversion)
• Close-packed structures (FCC, BCC, HCP)

4. Phase Diagrams and Phase Transformations

• Definition and purpose of phase diagrams
• Components of phase diagrams (phases, phase boundaries, eutectic points)
• Types of phase transformations (solidification, polymorphic, eutectoid)
• Effect of temperature and pressure on phase stability
• Lever rule and phase fraction calculations

5. Mechanical Properties of Materials

• Definitions and importance
• Elasticity and plasticity
• Strength (yield strength, tensile strength)
• Toughness and hardness
• Relationship between mechanical properties and atomic structure/bonding
• Influence of microstructure (grain size, defects)

6. Thermal Properties of Materials

• Thermal conductivity and mechanisms of heat transfer
• Specific heat capacity and its significance
• Coefficient of thermal expansion and its impact on material performance
• Thermal stability and thermal shock resistance

7. Electrical and Magnetic Properties of Materials

• Electrical conductivity and resistivity
• Dielectric properties and polarization
• Magnetic behavior:
  • Paramagnetism
  • Ferromagnetism
  • Antiferromagnetism
• Applications of electrical and magnetic materials

8. Optical Properties of Materials

• Interaction of materials with light
• Absorption, reflection, transmission, and refraction
• Electronic structure relation to optical behavior
• Photonic materials and applications

9. Corrosion and Degradation of Materials

• Causes of corrosion and degradation
• Electrochemical corrosion mechanisms
• Environmental factors affecting corrosion
• Methods of corrosion prevention (coatings, inhibitors, cathodic protection)
• Importance of material selection for durability

10. Nanomaterials and Their Applications

• Definition and scale of nanomaterials
• Unique properties at nanoscale (quantum effects, surface area to volume ratio)
• Synthesis methods (top-down, bottom-up approaches)
• Applications in electronics, medicine, energy, and environmental science
• Safety and environmental considerations