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Carbonized Residues Electrical Resistance as a Result of the Supramolecular Structure Organization

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Abstract:

The carbonized materials structure levels from molecular to macrostructure is analyzed. A study was conducted to find correlations between the granular carbonized materials electrical resistance and other substance physicochemical properties. It is proven theoretically and experimentally that determining the electrical resistance for a granular material, rather than a finely ground sample, is a more informative indicator for reflecting the microstructural features of the material, its reactivity, strength, and clarifying the carbonization conditions. A method is developed for determining the granular materials electrical resistance in the rotating drum interelectrode space, with determination of the indicator value in the cold and hot state for the substance under investigation. An indicator of the granular matter electrical resistance based on the heating time to 670 °C at a drum power supply constant voltage is introduced. Calculated dependencies is obtained for predicting, based on experiment results, some quality indicators for such a carbonized material as metallurgical coke: structural strength, apparent density, reactivity, gasification degree, and electrical resistivity. Better correlations is achieved with these indicators than with the standard electrical resistance on the "micropress" device, which indicates a better reflection of the carbonized materials substance supramolecular structure.

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Periodical:

Materials Science Forum (Volume 1164)

Pages:

133-143

DOI:

https://doi.org/10.4028/p-BEw7Qq

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Online since:

November 2025

Authors:

Dmytro Tregubov*, Artem Maiboroda, Maryna Chyrkina-Kharlamovа, Dmytro Zhurbynskyi

Keywords:

Carbonized Residue, Measurement, Metallurgical Coke, Physicochemical Properties, Prediction, Resistivity, Solid Combustible Material

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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