Review: FE Exam
         –Part 1 – atomic structure & bonding
            • What holds materials together?
         –Part 2 – Imperfections in solids
            • How are they packed?
         –Part 3 – mechanical properties
            • How do they deform?
                                
      Review: Chapter 1 – Introduction 
     • Types of Materials
        –Metals
        –Polymers
        –Ceramics
                            
      Review: Chapt 2-Atomic Structure
     • Atomic Number, Atomic Weight, etc. 
     • Periodic table
        –Electron Structure - valence electrons – 
          unfilled shells
     • Bonding
        –ionic
        –covalent
        –metallic
        –van der Waals
                              
             Review: Chapt 3 – Crystal 
                        Structures
      • Unit Cell
         –Metals
            • BCC
            • FCC
            • HCP
      • Atomic packing factor
      • Coordination number
      • Crystallographic directions [uvw]
                  families of directions  
      • Linear density of atoms (ld) = atoms/unit 
        length
                                 
              Review: Chapt 3 – Crystal 
                    Structures (cont.)
      •   Miller indices of planes  (hkl)   
                      families of planes {hkl}
      •   Planar density (pd) = # of atoms/ unit area
                          (pd) = S.A. atoms/S.A. unit cell
      •   X-Ray Diffraction
          – Bragg’s law            d     n
                                     hk  2sin