Chapter Fundamentals of Crystallography §2.1 Space Lattice I Crystals ver sus non-crystals 1. Classification of functional materials Lesson three
§2.1 Space Lattice ◆ Ⅰ.Crystals versus non-crystals 1. Classification of functional materials Chapter Ⅱ Fundamentals of Crystallography Lesson three
Aer C-C composites. SiO2, Amorphous Structural silicon, Al-alloys, Biomedical Superalloys, Steel Zerodur Hydroxyapati Aluminum alloys Titanium alloys, Concrete Stainless steels Fiberglass Shape-memory Plastics, Wood alloys, Plastics, PZT Smart Materials Electronic Materials Ni-Ti shape Classification of Si GaAs, Ge BaTiO3, PZT memory alloys. MR nuids Materials YBa2Cu3O7.r, AL. Cu, W, Conductin Polymer gels polymers Optical E nergy Materials Technology and SiO, GaAs. Environmental UO,, Ni-Cd Zro Glasses, AlO3 Magnet YAG. ITO LiCoO2, Amorphous Si: H Fe. Fe-Si NiZn and MnZn ferrites Co-Pt-Ta-Cr y-Fez0
2 Classification of materials based on structure Regularity in atom arrangement periodic or not (amorphous) H( H (a) 入足 O (c)
2. Classification of materials based on structure Regularity in atom arrangement —— periodic or not (amorphous)
Crystalline: The materials atoms are arranged in a periodic fashion Single crystal: in the form of one crystal grains y Polycrystalline grain boundaries Amorphous: The material's atoms do not have a long-range order (0.1~1nm)
➢ Crystalline: The materials atoms are arranged in a periodic fashion. ➢ Amorphous: The material’s atoms do not have a long-range order (0.1～1nm). ✓ Single crystal: in the form of one crystal grains ✓ Polycrystalline: grain boundaries
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