Heat-resistant unfired phosphate ceramics with carbon nanotubes for electromagnetic application

Antonino Cataldo, Federico Micciulla, Dzmitry Bychanok, Artyom Plyushch, Antonino Cataldo, Alexey Sokol, Sergey Maksimenko, Polina Kuzhir, Konstantin Lapko, Jan Macutkevic, Juras Banys, Sergey Maksimenko, Stefano Bellucci

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Composite materials, containing low concentrations of carbon nanotubes (CNTs) of three different diameters and heat-resistant phosphate ceramic as a matrix were prepared by cold-pressing method. Their dielectric properties were studied at room temperature in a wide frequency range (20 Hz–1 MHz). It was found experimentally and proved theoretically via modeling of the composites as a random capacitor–resistor–diode network that electrical percolation concentration depends significantly on the diameter of the nanoinclusions. The main conclusion is that the best candidate providing both the lower percolation threshold and high absolute values of ac conductivity is thinner carbon nanotubes (in our particular case, 8–15 nm).
Original languageEnglish
Pages (from-to)2580-2585
Number of pages6
JournalPHYSICA STATUS SOLIDI. A, APPLICATIONS AND MATERIALS SCIENCE
Volume211
Publication statusPublished - 2014

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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