Abstract
Oxidative consumption of graphite electrodes in technological use can be slowed down by impregnating the electrodes with inorganic salts. Burn-off kinetics was studied for impregnated and unimpregnated electrode material at temperatures in the range 550–750°C. The dependence on specimen size and on pore volume were separated out experimentally. The evolution of pore system during oxidation is discussed. Growth of pores with radii of 200–600 nm is the main result of burn-off.
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