Prof. Anatoliy T. Ponomarenko Profile

Prof. Anatoliy T. Ponomarenko

Main Scientific Researcher of Lab ISPM RAS at Institute of Synthetic Polymeric Materials

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Publications (7)

Proceedings Article | 4 June 1999 Paper

Modeling of electrodynamic properties control in liquid-impregnated porous ferrite media

Anatoliy Ponomarenko, Nataliya Ryvkina, Nataliya Kazantseva, Igor Tchmutin, Vitaliy Shevchenko, Ivan Catton, Vladimir Travkin

Proceedings Volume 3667, (1999) https://doi.org/10.1117/12.350133

KEYWORDS: Dielectrics, Magnetism, Composites, Particles, Liquids, Mathematical modeling, Electrodynamics, Data modeling, Microwave radiation, Ferromagnetics

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Proceedings Article | 20 May 1996 Paper

Computation of electrodynamic properties of structures with liquid components

Anatoliy Ponomarenko, Nataliya Ryvkina, Igor Tchmutin, Carl Klason, Vitaliy Shevchenko

Proceedings Volume 2722, (1996) https://doi.org/10.1117/12.240451

KEYWORDS: Dielectrics, Liquids, Electrodynamics, Composites, Electromagnetic radiation, Polymers, Absorption, Metals, Solids, Reflection

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Proceedings Article | 20 May 1996 Paper

Investigation of tunable structures with liquid dielectrics for the microwave range

Vitaliy Shevchenko, Vladimir Apletalin, Anatoliy Ponomarenko, Valerii Maltsev, Yuri Kazantsev

Proceedings Volume 2722, (1996) https://doi.org/10.1117/12.240446

KEYWORDS: Dielectrics, Liquids, Particles, Microwave radiation, Absorption, Polymers, Electromagnetic radiation, Reflection, Metals, Electrodynamics

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Proceedings Article | 8 May 1995 Paper

Anisotropy of conductivity in carbon fiber-reinforced plastics with continuous fibers

Anatoliy Ponomarenko, Vitaliy Shevchenko, Sergey Letyagin, Carl Klason

Proceedings Volume 2443, (1995) https://doi.org/10.1117/12.208323

KEYWORDS: Anisotropy, Composites, Carbon, Resistance, Sensors, Polymers, Actuators, Epoxies, Electrodes, Particles

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Carbon fiber-reinforced plastics (CFRP), as high strength advanced materials are often used as media for embedding sensors and actuators. Due to the properties of components and processing conditions they are electrically anisotropic, with coefficient of anisotropy sometimes exceeding several thousands. This may prevent elimination of static electricity and cause erosion of material due to micro discharges at contacts with fastenings and embedded sensors and actuators, causing their malfunction. For this reason, the investigation of electrical properties of CFRP may provide the solution to this problem. Distribution of electric current field in CFRP and related with it possible errors in measurements of longitudinal conductivity and anisotropy are analyzed. CFRP have been prepared from PAN or cellulose fibers with different heat treatment temperatures and conductivity anisotropy was measured as a function of filler volume fraction and processing conditions. With increasing loading coefficient of anisotropy (alpha) decreases. Lower values of (alpha) were observed when curing agents containing ionic complexes of metals were used. Modifications of fiber surface with hydrophobic agents results in increased anisotropy. Composites prepared with carbon fabrics are isotropic in the fabric plane. Coefficient of anisotropy decreases with increasing molding pressure and depends on the type of weaving of fabric. In hybrid composites with alternating layers of carbon fabric and complex fiber fabric anisotropy is higher due to partial decomposition of conducting layer on top of complex fibers. A method for reducing anisotropy by introducing conducting `jumpers', shorting individual fibers or layers of fabric is proposed. The change of anisotropy in the process of fabrication of carbon-carbon composite by passing electric current through fibers has been investigated. In conclusion, alternative uses of CFRP with reduced anisotropy for contact elements of electric current through fibers has been investigated. In conclusion, alternative uses of CFRP with reduced anisotropy for contact elements of electric machines and geological prospecting as imitations of rocks are discussed.

Proceedings Article | 1 May 1994 Paper

Prospective polymer composites with electrophysical properties: highly filled fibers

Anatoliy Ponomarenko, Alexei Buts, Vitaliy Shevchenko, Carl Klason

Proceedings Volume 2191, (1994) https://doi.org/10.1117/12.173970

KEYWORDS: Magnetism, Particles, Polymers, Composites, Iron, Carbon, Optical fibers, Chemical elements, Electrodynamics, Ferromagnetics

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Proceedings Article | 1 May 1994 Paper

Magnetic-field-sensitive polymer composite materials

Anatoliy Ponomarenko, Vitaliy Shevchenko, Carl Klason, Alexander Pristupa

Proceedings Volume 2189, (1994) https://doi.org/10.1117/12.174051

KEYWORDS: Magnetism, Composites, Particles, Polymers, Resistance, Microwave radiation, Phonons, Polymerization, Smart materials, Magnetic semiconductors

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Proceedings Article | 1 May 1994 Paper

Strain-sensitive polymer composite material

Vitaliy Shevchenko, Anatoliy Ponomarenko, Carl Klason

Proceedings Volume 2189, (1994) https://doi.org/10.1117/12.174082

KEYWORDS: Composites, Polymers, Particles, Resistance, Polymerization, Temperature metrology, Glasses, Magnetism, Carbon, Optical spheres

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Showing 5 of 7 publications

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