Fabrication and Excellent Dielectric Performance of Exfoliated Graphite Sheets

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Title	Fabrication and Excellent Dielectric Performance of Exfoliated Graphite Sheets
Authors	Joshi, Girish M. Deshmukh, Kalim Jain, P.K.
ORCID
Keywords	Carbon materials Dielectrics Electrical properties Electron microscopy
Type	Article
Date of Issue	2016
URI	http://essuir.sumdu.edu.ua/handle/123456789/44852
Publisher	Sumy State University
License	Copyright not evaluated
Citation	Girish M. Joshi, Kalim Deshmukh, P.K. Jain, J. Nano- Electron. Phys. 8 No 1, 01022 (2016)
Abstract	In the present investigation, exfoliated graphite sheets were obtained from the thermo-chemical treatment of natural graphite flakes. In this process, the graphite expands almost 300-350 times of its original volume and takes the shape of worms. These worms can be pressed or rolled into any desired shape without any binder. The exfoliated graphite sheets show excellent electrical properties i.e. high dielectric constant (ε = 6.374 ×107) and comparatively low dielectric loss (tanδ = 138) across the frequency in the range 50 Hz to 30 MHz and temperature in the range 40-300 °C. The products developed from exfoliated graphite can have very good sealing applications in industrial areas, especially for gaskets in the automobile industries.
Appears in Collections:	Журнал нано- та електронної фізики (Journal of nano- and electronic physics)