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J. Compos. Sci.
Special Issues
Dielectric Composite Materials
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Dielectric Composite Materials

A special issue of Journal of Composites Science (ISSN 2504-477X). This special issue belongs to the section "Composites Manufacturing and Processing".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 1242

Special Issue Editors

Prof. Dr. Maxim Sychov

E-Mail Website
Guest Editor
1. Saint-Petersburg State Institute of Technology, Technical University, Saint Petersburg, Russia
2. Institute of Silicate Chemistry, St. Petersburg, Russia
Interests: polymer composites; ceramics; additive technologies; donor-acceptor properties of solid surfaces; interface interactions; luminescent materials
Dr. Sergey Mjakin

E-Mail Website
Guest Editor
Saint-Petersburg State Institute of Technology, Technical University, Saint Petersburg, Russia
Interests: surfaces and interfaces; composites; ceramics; electrochromic materials

Special Issue Information

Dear Colleagues,

The Special Issue "Dielectric Composite Materials” will involve regular research articles, reviews and short communications devoted to the development, preparation, characterization, modelling/simulation, fabrication (including additive technologies) and applications of composites with specific dielectric properties such as electrical resistance, permittivity (particularly high-k and low-k materials), dielectric loss, electric strength and other target performances tunable by the adjustment of the composition (binder and filler materials and their ratios) and structure (including filler distribution determined by interfacial interactions, incorporation of special additives, etc.).

This Special Issue will particularly address the problems relating to the enhancement of dielectric performances for various materials useful as insulating layers, components of energy storage systems, capacitors, displays and other electronic devices, including flexible, wearable and stretchable electronics.

Prof. Dr. Maxim Sychov
Dr. Sergey Mjakin
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Composites Science is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • dielectric properties
  • composites
  • permittivity
  • dielectric loss
  • electric strength
  • electrical resistance
  • interfacial interactions
  • “core-shell” structure
  • modelling
  • simulation
  • electronics

Published Papers (1 paper)

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Research

14 pages, 14453 KiB  
Article
Synthesis, Microstructure, and Electrical Conductivity of Eutectic Composites in MF2–RF3 (M = Ca, Sr, Ba; R = La–Nd) Systems
by Irina I. Buchinskaya, Natalia A. Arkharova, Anna G. Ivanova, Nikolay I. Sorokin and Denis N. Karimov
J. Compos. Sci. 2023, 7(8), 330; https://doi.org/10.3390/jcs7080330 - 15 Aug 2023
Cited by 1 | Viewed by 983
Abstract
Multiphase fluoride polycrystalline eutectics pRF3 × qMF2 forming in the MF2–RF3 (M = Ca, Sr, Ba; R = La–Nd) binary systems were synthesized by the directional crystallization technique from a melt. The phase composition, morphology, and [...] Read more.
Multiphase fluoride polycrystalline eutectics pRF3 × qMF2 forming in the MF2–RF3 (M = Ca, Sr, Ba; R = La–Nd) binary systems were synthesized by the directional crystallization technique from a melt. The phase composition, morphology, and temperature dependences of fluorine ionic conductivity in fabricated composites were studied in detail. The pRF3 × qMF2 (p and q are the mole percentages of components) eutectic composites consist of both extremely saturated fluorite-type structure M1−xRxF2+x solid solutions and the tysonite-type R1−yMyF3−y ones. Microsized growth blocks with a fine lamellar structure are typical for synthesized composites. The thinnest (from 3 μm) and longest lamellae are observed in the 68LaF3 × 32BaF2 composition. The ionic conductivity values of pRF3 × qMF2 composites are determined by the phase composition, practically do not depend on their morphological features, and reach 10−3–10−2 S/cm at 500 K (with an ion transport activation enthalpy of about 0.5–0.6 eV). Crystallized eutectics are superior to any single-phase M1−xRxF2+x solid solutions and ball-milling R1−yMyF3−y nanoceramics in terms of ion-conducting properties. These fluoride materials represent an alternative to widely applied tysonite-type ceramic composites in various electrochemical devices and require further in-depth studies. Full article
(This article belongs to the Special Issue Dielectric Composite Materials)
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