G conduc4vity resis4vity 6 electrical resisvity of

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Unformatted text preview: ectrical Conduc4on •  Semi- conduc4vity •  Insulator/Dielectric •  Ferroelectric materials •  Piezoelectric materials •  Superconduc4vity Electrical Materials Electrical Properties – Response to an applied electrical field (e.g. conduc4vity, resis4vity) 6 Electrical Resis%vity of Copper (10- 8 Ohm- m) Resis*vity, ρ 5 4 3 C i t%N .12 a 1 Cu + ” Cu re “Pu 2 1 0 i t%N a 2.16 u + - 200 - 100 0 T (oC) • Adding “impurity” atoms to Cu increases resis4vity. • Deforming Cu increases resis4vity. Classification of Electrical Materials One way to classify solid materials is according to the ease with which they conduct an electric current. Conductor: Good conductors, high conduc4vi4es (~107) Semi-conductor: Intermediate conduc4vity (10- 6 - 104) Insulator: Poor conductors, low conduc4vity (10- 10 - 10- 20) Electrical Conduction Ohm’s law states that the current (I - amperes, C/s), flowing through a...
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This note was uploaded on 01/16/2014 for the course EMA 3010 taught by Professor Unknown during the Fall '08 term at University of Florida.

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