Electroresistivity of periclase from the Bogdanovich Refractory Plant

Conclusions

The method of determining the electrical resistivity of periclase in relation to GOST 13236-73 envisaging the measurement of this value at 600, 800, and 1000°C does not provide an equivalent evaluation of the material in relation to these indices.

On the basis of the analysis data from the distribution of values of the resistivity measured at various temperatures, it has been established for various classes of periclase that when the resistivity is measured at 1000°C, the classification of periclase in accordance with the classes in GOST 13236-73 almost completely matches the classification of periclase obtained by measuring the resistivity at the three temperatures.

In drawing up the new Standard for electrical-engineering periclase using the method of determining the electrical resistivity, it is reasonable to consider the measurements at the lowest temperature.