Preferred Label : carbon electrode;
IUPAC definition : An electrode for an electrical application. In its green state it comprises granular
carbon material bound with pitch. The granular carbon material may be either needle
coke, fine-grained or isotropic coke or reclaimed graphite powder. Electrodes for
use in steel production can only be manufactured from needle coke, and the green electrodes
are fired at temperatures above around 2800 K to produce highly graphite electrodes.
The other granular carbon materials may be used for aluminium electrodes where the
duty is not so severe, and the green electrodes are generally fired to lower temperatures.;
Scope note : in both cases it is essential that the granular carbons and the pitch binders used
in the production of the green electrodes have a low sulfur content as the release
of sulfur during the high-temperature firing can lead to the production of significant
porosity.;
Origin ID : C00829;
See also
An electrode for an electrical application. In its green state it comprises granular
carbon material bound with pitch. The granular carbon material may be either needle
coke, fine-grained or isotropic coke or reclaimed graphite powder. Electrodes for
use in steel production can only be manufactured from needle coke, and the green electrodes
are fired at temperatures above around 2800 K to produce highly graphite electrodes.
The other granular carbon materials may be used for aluminium electrodes where the
duty is not so severe, and the green electrodes are generally fired to lower temperatures.
