Download presentation
1
Materials: Structure and Uses
Unit 2 Section D Materials: Structure and Uses
2
Allotropes: Same Element, Different Structure & Properties
Diamond Graphite Buckminsterfullerene
3
Carbon Nanotubes
4
Ceramics A ceramic is an inorganic, non-metallic solid prepared by the action of heat and subsequent cooling.
5
Properties of Ceramics?
Hardness Rigidity Low reactivity Resistance to wear Brittle
6
Plastics Synthetic, (meaning human created) long chains of carbon-atom chains with hydrogen and/or other elements PET polystyrene PVC
7
Properties of Plastics?
Vary greatly Highly customizable Most are petroleum based
8
Combining Metals Alloy: a solid “solution” of atoms of 2 or more metals Brass Steel (sort of) Bronze
10
Properties of alloys Some are superconductive –conduct electric current without any resistance Take the properties of their constituent elements
11
Semiconductors Only conduct electricity at certain voltages
Can change the direction of a current Doping-adds impurities to semiconductors to enhance their properties
12
Modifying Surfaces Coatings
Paints Varishes Powder coating Electroplating: using electric current to coat something with a metal
13
Thin Films
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.