Special Issue "Microwave Plasma Processing of Materials"

A special issue of Technologies (ISSN 2227-7080). This special issue belongs to the section "Innovations in Materials Processing".

Deadline for manuscript submissions: 1 November 2018

Special Issue Editors

Guest Editor
Prof. Dr. Paolo Veronesi

DIMANT (Design of Innovative Materials for New Technologies), Department of Engineering "Enzo Ferrari", Via Vivarelli 10, 41125 Modena, Italy
Website | E-Mail
Interests: microwave processing of materials; microwave applicator design; powder metallurgy; numerical simulation of electroheat processes; high entropy alloys; non-ferrous alloys; heat treatment of metals
Guest Editor
Prof. Dr. Marilena Radoiu

Independent Consultant, EMLYON Business School, Lyon Area, France
Website | E-Mail
Interests: microwave processing in solid; liquid and gas phase with applications to cosmetics, pharmaceuticals, nutraceuticals, food, ceramics, etc.; scale up and commercialization of microwave processes to maximize the process benefits which include improved energy efficiency; product quality and throughput with reduced environmental impact including carbon footprint; fundamental understanding of the microwave/material interactions at a molecular level

Special Issue Information

Dear Colleagues,

This Special Issue, which will also gather contributions from the 16th AMPERE (Association for Microwave Power in Europe for Research and Education) conference in Delft (2017), centered on microwave plasmas, involving both the processing of materials and new plasma sources. The advantage of using microwaves for plasma generation lies in the higher degrees of ionization and dissociation that can be obtained, compared to other types of electrical excitation. This can be used proficiently to reduce activation energy and to enhance reaction kinetics. Moreover, compared to conventional thermal plasmas or standard thermal reactions, lower temperatures can be achieved, with important consequences on the energy efficiency and yield of processes, as well as on the microstructure of resulting products.

The topic of microwave plasmas is an interdisciplinary one, which includes fields of science, engineering, and technology, with important contributions from chemistry, physics, materials science and microwave technology. The latter becomes more and more relevant when considering the advent of new high-power microwave solid-state generators, implementing new control strategies to further optimize plasma generation, both in continuous or pulsed modes.

Topics

  • Microwave plasmas generation and measurements, including new power sources and applicator geometries
  • Modeling of microwave plasmas and microwave-plasma assisted processes
  • Synthesis of nanoparticles by microwave plasmas
  • Microwave plasmas for etching and coating of surfaces
  • Environmental applications of microwave plasmas

Paper Solicitation

This issue is an open Special Issue where everyone is encouraged to submit papers. We will solicit papers through two ways: conference and open call-for-papers.

1. Selected Papers from the 16th International Conference on Microwave and High Frequency Heating: AMPERE 2017 (http://www.ampere2017.nl/).

AMPERE is a non-profit association devoted to the promotion of microwave and radio frequency heating techniques for research and industrial applications. The 2017 edition of its biannual conference covers research on different aspects of microwave and RF, ranging from dielectric properties measurement, to modeling, system design, chemical synthesis and material processing. We plan to select the papers relevant to microwave plasmas from the accepted papers based on the reviews (comments and scores) and the presentations during the conferences. Each selected paper must be substantially extended, with at least 50% difference from its conference version. The conference paper should be cited in the extended version and tagged the conference information in the title.

2. Open Call-For-Papers

We also plan to publicize an open call-for-papers (CFP) by listing the CFP in major academic announcement mailing lists/websites and by sending the CFP to researchers in the areas around the world. We estimate there will be a number of submissions via the open call-for-papers. Then we plan to select another few papers from the submissions.

Prof. Dr. Paolo Veronesi
Prof. Dr. Marilena Radoiu
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 papers will be 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. Technologies is an international peer-reviewed open access quarterly 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 350 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.

Published Papers (1 paper)

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Research

Open AccessArticle Surface Modification of Polystyrene with O Atoms Produced Downstream from an Ar/O2 Microwave Plasma
Technologies 2018, 6(1), 21; https://doi.org/10.3390/technologies6010021
Received: 12 December 2017 / Revised: 18 January 2018 / Accepted: 6 February 2018 / Published: 9 February 2018
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Abstract
Because discarded polystyrene (PS) is little affected by degrading agents, PS was treated with a remote microwave (MW) plasma discharge of an Ar/O2 mixture in the absence of radiation to increase wettability and introduce functional groups which make the waste more liable
[...] Read more.
Because discarded polystyrene (PS) is little affected by degrading agents, PS was treated with a remote microwave (MW) plasma discharge of an Ar/O2 mixture in the absence of radiation to increase wettability and introduce functional groups which make the waste more liable to degradation and useful for technological applications. X-ray photoelectron spectroscopy (XPS) detected decreases in the aromatic sp2 and aliphatic sp3 carbons with treatment and, initially, increases in C–O and carbonyl groups, present in the formation of ethers, epoxides, alcohols, ketones and aldehydes. At longer treatment times, ester, O–C=O; carbonate-like, O–(C=O)–O; and anhydride, O=C–O–C=O; moieties are observed with an overall oxygen saturation level of 23.6 ± 0.9 at% O. Atomic Force Microscopy (AFM) measurements detected little change in surface roughness with treatment time. Advancing water contact angle decreased by ca. 50% compared to pristine PS indicating an increase in hydrophilicity because of oxidation. Washing the treated samples in deionized water decreased the oxygen concentrations at the saturation treatment times down to 18.6 ± 1 at% O due to the washing away of a weak boundary layer. Full article
(This article belongs to the Special Issue Microwave Plasma Processing of Materials)
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