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Electrical Conductivity in Graphite Foils Produced by Rolling and Pressing

Overview
Journal Materials (Basel)
Publisher MDPI
Date 2025 Jan 8
PMID 39769753
Authors
Nikolai S Morozov
Vladimir A Shulyak
Margarita G Isaenkova
Olga A Krymskaya
Vladimir A Fesenko
Sergei N Chebotarev
Victor V Avdeev
Affiliations
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Abstract

In this research paper, the factors impacting electrical conductivity of the flexible graphite foils (GFs) produced by different forming processes, namely, either by rolling or pressing, were studied. The relationship between electrical conductivity and texture and structure that formed when producing the material was examined. Correlation was determined between the texture sharpness and anisotropy of electrical conductivity, as well as the extent of impact from the substructural characteristics on the properties' values. Besides, it was demonstrated that the higher values of micro-strains, as well as the secondary phase substructure, reduced conductivity in foils. Electrical conductivity calculation was optimized for different directions in foils using the Kearns texture parameters and taking into consideration the foil structural characteristics.

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