Electrical Conductivity in Graphite Foils Produced by Rolling and Pressing
Author Information
Author(s): Morozov Nikolai S., Shulyak Vladimir A., Isaenkova Margarita G., Krymskaya Olga A., Fesenko Vladimir A., Chebotarev Sergei N., Avdeev Victor V.
Primary Institution: Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
Hypothesis
The study aims to determine the electrical conductivity characteristics for graphite foils produced by cold rolling and pressing, and the impact of structural and textural parameters on the final properties of the material.
Conclusion
Rolling of graphite foils results in higher electrical conductivity and anisotropy compared to pressing.
Supporting Evidence
- The rolled graphite foils showed higher electrical conductivity values than the pressed foils.
- Anisotropy of electrical conductivity was observed due to the structural characteristics of the graphite.
- Micro-strains and the presence of impurities negatively impacted the electrical conductivity of the pressed samples.
Takeaway
This study looks at how different ways of making graphite foils affect how well they conduct electricity. Rolling makes them better at conducting than pressing.
Methodology
Graphite foils were produced by rolling and pressing, and their electrical conductivity was measured in different directions using the van der Pauw method.
Limitations
The study did not account for the interaction of grains or the potential impact of structural factors on conductivity.
Digital Object Identifier (DOI)
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