Electrical Conducting Materials

Materials made of metal are common electrical conductors.

Electrical conducting materials.

The best electrical conductor under conditions of ordinary temperature and pressure is the metallic element silver. Conductivity refers to the ability of a material to transmit energy. Materials having high resistivity or low conductivity conducting are very useful for electrical engineering products. Such compounds may have metallic conductivity or can be semiconductors.

The atoms of metal elements are characterized by the presence of valence electrons which are electrons in the outer shell of an atom that are free to move about. Electrical conductivity is the reciprocal quantity of resistivity. Polyesters and polyamides 2008. Conductivity is a measure of how well a material conducts an electric current.

Silver is not always an ideal choice as a material however because it is expensive and susceptible to tarnishing and the oxide layer known as tarnish is not conductive. There are different types of conductivity including electrical thermal and acoustical conductivity. Electrical conductivity in metals is a result of the movement of electrically charged particles. In physicsand electrical engineering a conductoris an object or type of material that allows the flow of charge electrical current in one or more directions.

Electrical conductivityor specific conductanceis the reciprocal of electrical resistivity. It represents a material s ability to conduct electric current. Conductive polymers or more precisely intrinsically conducting polymers icps are organic polymers that conduct electricity. The most electrically conductive element is silver followed by copper and gold.

6 16 2016 10 07 47 am. It is commonly signified by the greek letter σ sigma but κ kappa especially in electrical engineering and γ gamma are sometimes used. Table of resistivity and conductivity at 20 c. Conductive materials include metal fibres as well as inherently conducting polymers icps and carbon fibres already being used in many applications for occupational work wear such as antistatic working emi electromagnetic interference shielding heating and the transport of electrical signals.

The biggest advantage of conductive polymers is their processability mainly by dispersion. Electric conductivitymay be represented by the greek letter σ sigma κ kappa or γ gamma.