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What is graphite electrode resistivity? electrical resistivity of graphite

Jul 23, 2020 Source: DanCarbon Writer: Yvonne
Electrical resistivity (also referred to as resistivity, specific electrical resistance, or impedance), is an intrinsic property that quantifies how strongly a given material resists the flow of electric current. A low resistivity indicates a material that readily allows the flow of electric current. Electrical conductivity or specific conductance is the reciprocal of electrical resistivity and measures a material's ability to conduct an electric current.
Electrical conductivity of bulk graphite is regarded as a function of its volume density and temperature. In general, increasing the compression pressure mechanically reduces the gaps between carbon particles, directly enhancing the electrical contact. The electrical conductivity of graphite depends on the separation distance between each particle and the average particle size.

Electrical resistivity of graphite:
Graphite is a allotrope of the element carbon, with three other carbon atoms attached to each carbon atom, arranged in a honeycomb of hexagons. Graphite is conductive because each carbon atom emits an electron that can move freely. Graphite is one of the softest minerals. Its USES include the manufacture of pencil leads and lubricants and as a neutron moderator in a pressure tube type graphite moderating boiling water reactor (RBMK)(ENwiki).
Resistivity of graphite (8 ~ 13) x 10-6 (Ω/m)

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