Collection of scientific works Nanosystems, nanomaterials, nanotechnologies Year 2024 Volume 22, Issue 3
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B. TURKO, V. VASIL’EV, B. SADOVYI, R. BIHUN, I. PYLYPIV, V. KAPUSTIANYK, and D. LEONOV

Electrophysical Properties and Thermal Conductivity of Composite Based on Zinc Oxide and Reduced Graphene Oxide (1 vol.%)
637–642 (2024)

PACS numbers: 65.80.Ck, 66.70.Lm, 72.80.Tm, 81.05.ue, 81.07.Wx, 84.32.Tt

The thermal conductivity of the composite materials based on the commercial ZnO micropowder with reduced graphene oxide (1 vol.%) powder dispersed in the polymethylsiloxane (silicone oil) is measured using the radial heat-flow method. The thermal conductivity of the composite material based on the commercial ZnO micropowder with an average particle size of 50 µm and reduced graphene oxide is found to be 9.4 W/(m•K). At room temperature, the values of the dielectric permittivity at the measuring electric-field frequencies of 50 Hz and 1 MHz and the specific volume electrical resistance for the composite are obtained. An increase in the values of both the coefficient of thermal conductivity and the dielectric constant as well as a decrease in the specific volume electrical resistance due to a change in the volume fraction of reduced graphene oxide in the composite from 0.5 vol.% up to 1 vol.% are recorded

KEY WORDS: reduced graphene oxide, zinc oxide, composites, thermal conductivity, dielectric constant, specific volume electrical resistance

DOI:  https://doi.org/10.15407/nnn.22.03.637

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