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The control of electrical conductivity of polymer composites and the search for new areas of their application are urgent tasks for the creation of new materials and the element base of microelectronics. Polymer-based composites take on unique properties when disperse particles are incorporated into polymer matrix. Titanium and its alloys are characterized by exceptional mechanical tribological properties, corrosion resistance, biocompatibility and antibacterial properties; thereby they are widely used in biomedicine. In this work, the electrophysical properties of a composite material based on polyimide PI-LK2V and TiV powder were studied using electron microscopy, energy dispersive and X-ray fluorescence spectroscopy, and electrical characteristics measurements. The possibility of samples switching to a conductive state using a special electroforming mode was shown. The samples demonstrate the presence of nonlinear current-voltage curves, hysteresis and anisotropy of electrical properties. The varistor and memristor effects have been found that can be explained by the formation of thin filamentous conductive channels in the composite material. The results of the study can be used in integrated electronics to create composite functional materials with controllable conductive and dielectric properties, in the technologies of multilevel wiring and redistribution layers.

Key words: composite materials, polyimide, conducting composites, memristor effect, tunnelling conductivity, multifunctional materials, flexible electronics, redistribution layers
Published in: ELECTRONICS MATERIALS
Bibliography link: Boyko A. N., Kochergin M. D., Vertyanov D. V., Gaev D. S., Pebalk D. V. Memristor effects and anisotropy in a polyimide – TiV composite with filamentous conducting channels. Izv.vuzov. Elektronika = Proc. Univ. Electronics. 2025;30(4):422–431.(InRuss.).https://doi.org/10.24151/1561-5405-2025-30-4-422-431.
Financial source: the work has been supported by the Russian Science Foundation (project no. 23-29-00964)and using the equipment of the Centre for Collective Use “Diagnostics and Modification of Microstructures and Nano-Objects” of the MIET and the Centre for Collective Use “X-ray Diagnostics of Materials” of the Kabardino-Balkarian State Universitynamed after H. M. Berbekov.

Anton N. Boiko
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)

Mikhail D. Kochergin
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)

Denis V. Vertyanov
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)

Dmitry V. Pebalk
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)

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Information about the publication

UDK: 621.3.049.76/678.01:537.311
Publication type: Scientific article
Source lang: Russian
DOI: 10.24151/1561-5405-2025-30-4-422-431
RISC id: AYIAYT

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