ENGR 100 Lecture Notes - Lecture 24: Ionic Bonding, Stone Age, Bohr Model
Document Summary
Materials drive our society (stone age, bronze age, iron age) Four main components of a material: structure, property, processing and performance. Arrangement of atoms that can be viewed with some form of microscope. Arrangement of atoms that can be viewed with the naked eye. A material trait in terms of the kind and magnitude of response to an imposed stimulus. Materials composed of one or more metallic elements. They are often classified as strong, ductile, good thermal properties and shiny. Comprised of plastic and rubber material and are usually organic compounds. They are formed through covalent bonding which is the electron sharing or two non-metals. Materials that are comprised of both metals and non-metals and are formed through ionic bonding. (ex: aluminum oxide, cement and glass) A combination of two or more individual materials that come from different categories (metals, ceramics, polymers).
