Nano-scaled onion-like carbon: Prospective material for microwave coatings

P. Kuzhir; S. Maksimenko; D. Bychanok; V. Kuznetsov; S. Moseenkov; I. Mazov; O. Shenderova; Philippe Lambin

doi:10.1016/j.metmat.2009.07.002

Nano-scaled onion-like carbon: Prospective material for microwave coatings

P. Kuzhir, S. Maksimenko, D. Bychanok, V. Kuznetsov, S. Moseenkov, I. Mazov, O. Shenderova, Philippe Lambin

Research output: Contribution to journal › Article › peer-review

Abstract

Microwave absorption properties of a novel electromagnetic material - onion-like carbon (OLC) produced by annealing of detonation nanodiamonds in vacuum - have been studied in microwave frequency range. The OLC electromagnetic (EM) absorption ability can be optimized by varying the nanocarbon cluster size and nanodiamond annealing temperature so that effective EM coatings can be produced. Attenuation of EM waves in the 26-38 GHz frequency range had been studies for both OLC powder and polymer composites. For powder samples it was concluded that OLC aggregates with higher conductivity (higher annealing temperature of the precursor nanodiamond particles) and larger aggregate sizes provide higher efficiency for attenuation of the EM radiation. At the same time, when dispersed in a polymer matrix, more efficient shielding properties had been observed for OLC aggregates of the smallest sizes as compared to larger-sized aggregates at the same OLC loading. This is attributed due to the better dispersion and formation of a continuous conductive network by smaller aggregates (reaching the percolation threshold).

Original language	English
Pages (from-to)	148-156
Number of pages	9
Journal	Metamaterials
Volume	3
Issue number	3-4
DOIs	https://doi.org/10.1016/j.metmat.2009.07.002
Publication status	Published - 1 Nov 2009

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10.1016/j.metmat.2009.07.002

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title = "Nano-scaled onion-like carbon: Prospective material for microwave coatings",

abstract = "Microwave absorption properties of a novel electromagnetic material - onion-like carbon (OLC) produced by annealing of detonation nanodiamonds in vacuum - have been studied in microwave frequency range. The OLC electromagnetic (EM) absorption ability can be optimized by varying the nanocarbon cluster size and nanodiamond annealing temperature so that effective EM coatings can be produced. Attenuation of EM waves in the 26-38 GHz frequency range had been studies for both OLC powder and polymer composites. For powder samples it was concluded that OLC aggregates with higher conductivity (higher annealing temperature of the precursor nanodiamond particles) and larger aggregate sizes provide higher efficiency for attenuation of the EM radiation. At the same time, when dispersed in a polymer matrix, more efficient shielding properties had been observed for OLC aggregates of the smallest sizes as compared to larger-sized aggregates at the same OLC loading. This is attributed due to the better dispersion and formation of a continuous conductive network by smaller aggregates (reaching the percolation threshold).",

author = "P. Kuzhir and S. Maksimenko and D. Bychanok and V. Kuznetsov and S. Moseenkov and I. Mazov and O. Shenderova and Philippe Lambin",

year = "2009",

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T1 - Nano-scaled onion-like carbon

T2 - Prospective material for microwave coatings

AU - Kuzhir, P.

AU - Maksimenko, S.

AU - Bychanok, D.

AU - Kuznetsov, V.

AU - Moseenkov, S.

AU - Mazov, I.

AU - Shenderova, O.

AU - Lambin, Philippe

PY - 2009/11/1

Y1 - 2009/11/1

N2 - Microwave absorption properties of a novel electromagnetic material - onion-like carbon (OLC) produced by annealing of detonation nanodiamonds in vacuum - have been studied in microwave frequency range. The OLC electromagnetic (EM) absorption ability can be optimized by varying the nanocarbon cluster size and nanodiamond annealing temperature so that effective EM coatings can be produced. Attenuation of EM waves in the 26-38 GHz frequency range had been studies for both OLC powder and polymer composites. For powder samples it was concluded that OLC aggregates with higher conductivity (higher annealing temperature of the precursor nanodiamond particles) and larger aggregate sizes provide higher efficiency for attenuation of the EM radiation. At the same time, when dispersed in a polymer matrix, more efficient shielding properties had been observed for OLC aggregates of the smallest sizes as compared to larger-sized aggregates at the same OLC loading. This is attributed due to the better dispersion and formation of a continuous conductive network by smaller aggregates (reaching the percolation threshold).

AB - Microwave absorption properties of a novel electromagnetic material - onion-like carbon (OLC) produced by annealing of detonation nanodiamonds in vacuum - have been studied in microwave frequency range. The OLC electromagnetic (EM) absorption ability can be optimized by varying the nanocarbon cluster size and nanodiamond annealing temperature so that effective EM coatings can be produced. Attenuation of EM waves in the 26-38 GHz frequency range had been studies for both OLC powder and polymer composites. For powder samples it was concluded that OLC aggregates with higher conductivity (higher annealing temperature of the precursor nanodiamond particles) and larger aggregate sizes provide higher efficiency for attenuation of the EM radiation. At the same time, when dispersed in a polymer matrix, more efficient shielding properties had been observed for OLC aggregates of the smallest sizes as compared to larger-sized aggregates at the same OLC loading. This is attributed due to the better dispersion and formation of a continuous conductive network by smaller aggregates (reaching the percolation threshold).

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EP - 156

JO - Metamaterials

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ER -

Nano-scaled onion-like carbon: Prospective material for microwave coatings

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