Electrical Applications of Advanced Composite Materials

A special issue of Journal of Composites Science (ISSN 2504-477X).

Deadline for manuscript submissions: closed (31 December 2018) | Viewed by 4363

Special Issue Editors


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Guest Editor
Department of Materials Science & Engineering, Saarland University, D-66123 Saarbruecken, Germany
Interests: microstructural characterization; spark plugs; intermetallics; spark erosion

E-Mail Website
Guest Editor
Department of Materials Science, Saarland University, 66123 Saarbrücken, Germany
Interests: advanced materials characterization; mechanical and tribological behavior of composite materials; electrical behavior of C-reinforced composites; nano C-based protective coatings
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Special Issue Information

Dear Colleagues,

Composites are engineering materials that benefit from the synergy of combining the physical properties of a matrix and the reinforcement. This feature allows researchers to design and tailor the behavior of composite materials for specific engineering applications. One of the fields that strongly benefits from this is the electrical sector. It is well known that most materials in electrical components are subjected to a complex combination of potentially-damaging loads (i.e., electrical, thermal, mechanical, chemical), which compromise their ideal performance and might severely reduce their duty life. To overcome this, a complex combination of physical properties are required from the material. It is already known that pure metals or alloys rarely present this combination, thus severely restricting their application range. Hence, the most suitable approach is by the use of highly-engineered composites.

The scope of this Special Issue covers the new approaches to the use of composite materials in electrical applications, like for instance electrical contacts, plug connectors, electrodes, but also sensors. The focus of the submitted manuscripts may be placed on:

  • Design and manufacturing of different composite systems (multilayers, metal matrix composites, polymer matrix composites, pseudoalloys, carbon-based materials, etc.).
  • Advanced characterization (microstructural, physical properties, etc.).
  • Modelling and/or simulation.
  • Prototype performance (contact resistance, make/break operations, friction and wear analysis, sensing response, durability, etc.).

Dr. Flavio Soldera
Dr. Sebastian Suarez
Guest Editors

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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

  • metal matrix composites
  • polymer matrix composites
  • pseudoalloys
  • carbon materials
  • electrical properties
  • characterization
  • materials design
  • modelling
  • performance testing

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Published Papers (1 paper)

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Research

14 pages, 2718 KiB  
Article
Hydrogel-Graphene Oxide Nanocomposites as Electrochemical Platform to Simultaneously Determine Dopamine in Presence of Ascorbic Acid Using an Unmodified Glassy Carbon Electrode
by Jésica Pereyra, María V. Martinez, Cesar Barbero, Mariano Bruno and Diego Acevedo
J. Compos. Sci. 2019, 3(1), 1; https://doi.org/10.3390/jcs3010001 - 21 Dec 2018
Cited by 12 | Viewed by 3518
Abstract
The detection of dopamine, an important neurotransmitter in the central nervous system, is relevant because low levels of dopamine can cause brain disorders. Here, a novel electrochemical platform made of a hydrogel–graphene oxide nanocomposite was employed to electrochemically determine simultaneously dopamine (DA) and [...] Read more.
The detection of dopamine, an important neurotransmitter in the central nervous system, is relevant because low levels of dopamine can cause brain disorders. Here, a novel electrochemical platform made of a hydrogel–graphene oxide nanocomposite was employed to electrochemically determine simultaneously dopamine (DA) and ascorbic acid (AA). Unlike previous work, where the base electrode is modified, the active material (graphene oxide, GO) was dispersed in the hydrogel matrix, making an active nanocomposite where the electrochemical detection occurs. The GO, hydrogel and nanocomposite synthesis is described. Dynamic Light Scattering, UV-visible and FTIR spectroscopies showed that the synthesized GO nanoparticles present 480 nm of diagonal size and a few sheets in height. Moreover, the polymer swelling, the adsorption capacity and the release kinetic of DA and AA were evaluated. The nanocomposite showed lower swelling capacity, higher DA partition coefficient and faster DA release rate than in the hydrogel. The electrochemical measurement proved that both materials can be employed to determine DA and AA. Additionally, the nanocomposite platform allowed the simultaneous determination of both molecules showing two well separated anodic peaks. This result demonstrates the importance of the incorporation of the nanomaterial inside of the hydrogel and proves that the nanocomposite can be used as a platform in an electrochemical device to determinate DA using an unmodified glassy carbon electrode. Full article
(This article belongs to the Special Issue Electrical Applications of Advanced Composite Materials)
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