Composite Structures and Metamaterials in Acoustic and Electromechanical Applications

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

Deadline for manuscript submissions: 31 December 2025 | Viewed by 1817

Special Issue Editor


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Guest Editor
Institute for CMOS Design, Technical University of Braunschweig, 38106 Braunschweig, Germany
Interests: metamaterials and composites; bio(chemo)sensors; ultrasonic measurements; piezoelectrics; acoustofluidics; computer modelling of processes in solids and fluids

Special Issue Information

Dear Colleagues,

Composite structures and metamaterials play a significant role in controlling acoustic, ultrasonic, and electromechanical phenomena. Composite materials can exhibit extraordinary properties not found in natural materials due to their special structural and component organization. By tailoring their architecture and material composition, these artificial structures enable acoustic/elastic wave manipulation for noise reduction, vibration control, waveguiding, filtering, focusing, sensing, cloaking, and object manipulation. The integration of tunable and active components, such as piezoelectric or dielectric elastomer elements, enhances their adaptability to external stimuli and facilitates electromechanical energy conversion. Beyond their functional applications, ultrasonic techniques provide the essential tools for characterizing and analyzing composite materials, offering insights into their structural and mechanical properties. Advancements in the modeling, simulation, fabrication, and experimental characterization of composite media and metamaterials are key to unlocking their full potential. This Special Issue invites research on the design, properties, characterization methods, and applications of composite structures and metamaterials, including their interactions with acoustic/elastic waves, as well as their electromechanical performance.

Key topics to be covered include, but are not limited to, the following:

  • Composite structures and metamaterials for acoustic/elastic wave control and attenuation;
  • Electromechanical performance of composite materials;
  • Tunable and active composites and metamaterials;
  • Composite materials with piezoelectric components;
  • Dielectric elastomer composites and multilayer structures;
  • Modeling and numerical simulations of composite media and metamaterials in acoustics and electromechanics;
  • Propagation of elastic waves through organic and hybrid organic–inorganic composite layers;
  • Composite structures and metamaterials for controlling both acoustic and electromagnetic wave propagation;
  • Applications of composite structures in acoustic (ultrasonic) sensors;
  • Ultrasonic characterization, imaging, and treatment of composite materials;
  • Micro-electromechanical systems (MEMS) applications of composite materials.

Dr. Nikolay Mukhin
Guest Editor

Manuscript Submission Information

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Keywords

  • composite structures
  • metamaterials
  • acoustics and ultrasonics
  • acoustic waves control
  • electromechanics
  • electromechanical coupling
  • piezoelectric composites
  • dielectric elastomers
  • tunable materials
  • active composites
  • composites modeling
  • numerical simulations
  • ultrasonic characterization
  • acoustic sensors
  • MEMS

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Published Papers (1 paper)

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Research

21 pages, 6798 KiB  
Article
Electrochemical Impedance Analysis of Ti3C2Tx MXene for Pseudocapacitive Charge Storage
by Nafiza Anjum, Abdullah Al Noman, Md Mostafizur Rahman, Debashis Sen, Robert A. Lazenby and Okenwa I. Okoli
J. Compos. Sci. 2025, 9(3), 139; https://doi.org/10.3390/jcs9030139 - 17 Mar 2025
Viewed by 501
Abstract
This study investigates the electrochemical behavior of Ti3C2Tx MXene for supercapacitor applications, focusing on its charge storage mechanisms using Electrochemical Impedance Spectroscopy (EIS). A novel equivalent circuit (EC) model, incorporating a diffusion layer resistance and a constant phase [...] Read more.
This study investigates the electrochemical behavior of Ti3C2Tx MXene for supercapacitor applications, focusing on its charge storage mechanisms using Electrochemical Impedance Spectroscopy (EIS). A novel equivalent circuit (EC) model, incorporating a diffusion layer resistance and a constant phase element, was developed to represent the impedance spectra, achieving a low error margin of 4.6%. The cycling stability of MXenes and charge storage parameters were evaluated using the developed EC model. This study demonstrated that the irreversible anodic oxidation of MXene begins around 0.3 V due to water molecule attack from the aqueous electrolyte, resulting in the formation of a titanium oxide layer that increases charge transfer resistance and impairs charge storage. It was further revealed that the cycling stability of MXene is also related to the oxidation of MXene, and the initial capacitance of 493 F/g at 100 mV/s is reduced by 27.5% after 1000 cycles. The contribution of charge storage factors was analyzed, with 85% of MXene’s capacitance found to be surface controlled. This research offers a deeper understanding of MXene’s charge storage mechanisms, providing critical insights into optimizing its electrochemical performance and stability. By establishing advanced modeling approaches and addressing challenges related to oxidation and resistance, this work enhances MXene’s potential for high-power supercapacitors in electromechanical actuator applications. Full article
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