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Microwave Processing of Materials: A Sustainable Manufacturing Approach

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Mechanical Engineering".

Deadline for manuscript submissions: 20 August 2026 | Viewed by 1176

Special Issue Editors


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Guest Editor
CDRSP—Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028 Marinha Grande, Portugal
Interests: microwave processing of materials; microwave sintering; additive manufacturing; fluidic, magnetic, dielectric and thermal characterization and processes; thermomagnetic characterization; bioceramics; bioreactors

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Guest Editor
Departamento de Engenharia Mecânica, Universidade de Aveiro, 3810-193 Aveiro, Portugal
Interests: sintering; ceramic material; microwave heating
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Guest Editor
CEMMPRE, ARISE, Department of Mechanical Engineering, University of Coimbra, Rua Luís Reis Santos, 3030-788 Coimbra, Portugal
Interests: functional coatings; thin films; corrosion; wear
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce the Special Issue of the Applied Sciences journal, “Microwave Processing of Materials: A Sustainable Manufacturing Approach”.

Novel, auxiliary, or hybrid manufacturing processes based on environmentally friendly technologies aimed at enhancing the properties of materials are a prominent and necessary topic. Microwave heating technology has been used in many applications over the last decades as a promising technology due to its excellent prospects and material gains. This includes applications such as everyday ceramic materials, bio-ceramics (e.g., dental prostheses), lime-burning, recycling waste/pyrolysis, and even the extraction of essential oils.

Due to microwave–material interaction, materials' mechanical, rheological, thermal, and especially dielectric properties must be considered throughout all manufacturing stages (sintering/synthesis/distillation).

Both numerical simulation and experimental studies are essential to improve knowledge in this area, explaining the enhanced properties of microwave-manufactured materials compared to traditional methods.

This Special Issue aims to collect original contributions addressing all relevant aspects of developing materials and microwave-driven technologies and their applications. Papers reporting a close relationship between structure, morphology, and physical properties are welcome. Reviews and unpublished advances on any aspect of these topics are also invited, including but not limited to:

  • Development of microwave heating technologies;
  • Sustainability, carbon footprint, and life-cycle assessment of microwave-processed materials;
  • Evaluation of properties (mechanical, thermal, dielectric, acoustic, etc.) of microwave-processed and unprocessed materials;
  • New microwave solutions as a sustainable alternative in all fields of knowledge;
  • Numerical simulations explaining experimental observations;
  • Industrial applications.

We look forward to your contributions.

Sincerely,

Dr. Tiago Santos
Prof. Dr. Vítor António Ferreira da Costa
Dr. Susana Devesa
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 250 words) can be sent to the Editorial Office for assessment.

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. Applied Sciences is an international peer-reviewed open access semimonthly 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 2400 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

  • microwave processing of materials
  • sustainable manufacturing
  • ceramics
  • composites
  • organics
  • sintering
  • synthesis
  • distillation
  • greener materials processing

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Published Papers (1 paper)

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Research

38 pages, 18312 KB  
Article
Microwave Firing of Ceramics: Developing Homemade Susceptors and Their Practical Applications
by Bruno Goffé
Appl. Sci. 2025, 15(24), 13053; https://doi.org/10.3390/app152413053 - 11 Dec 2025
Viewed by 461
Abstract
This study explores the feasibility of constructing a microwave kiln for artisanal ceramics using accessible materials and homemade susceptors. Two modified microwave ovens (18 L and 50 L) were equipped with insulation and susceptors to achieve temperatures up to 1280 °C. Susceptors were [...] Read more.
This study explores the feasibility of constructing a microwave kiln for artisanal ceramics using accessible materials and homemade susceptors. Two modified microwave ovens (18 L and 50 L) were equipped with insulation and susceptors to achieve temperatures up to 1280 °C. Susceptors were fabricated from silicon carbide (SiC) and magnetite (Fe3O4) powders via microwave-assisted reactive sintering. Magnetite-poor susceptors (SiC/Fe3O4 > 2 by weight) demonstrated excellent durability, maintaining stable thermal performance over multiple cycles. In contrast, magnetite-rich susceptors (SiC/Fe3O4 ∼ 1) exhibited high initial efficiency and the ability to control redox conditions but degraded significantly after 10–15 cycles due to partial melting. The microwave kiln achieved significant time savings, completing the ramp-up of the firing cycles in 1 h, compared to 8–10 h in conventional kilns. Energy consumption per litre was comparable to large electric kilns but significantly lower than small ones. The fired ceramics, including porcelain and earthenware, showed excellent mechanical and aesthetic qualities, with glazes performing well even at lower temperatures than recommended. The study highlights the advantages of microwave heating, such as faster processing, energy efficiency, and the ability to control redox conditions, which mimic traditional gas-fired kilns. The developed susceptors are cost-effective and easy to manufacture, making this approach accessible to craftspeople and amateurs. While magnetite-rich susceptors enable redox control, their limited lifespan requires further optimisation. This work demonstrates the potential of microwave kilns for artisanal ceramics, offering flexibility, efficiency, and quality comparable to traditional methods, with promising applications for unique or small-scale production. Future research should focus on refining susceptors durability and validating redox control effects on ceramic glazes. Full article
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