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Advanced Microwave Technology for Processing

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

Deadline for manuscript submissions: 10 November 2025 | Viewed by 548

Special Issue Editors


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Guest Editor
Department of Engineering and Management of Technological Systems, Faculty of Mechanics, University of Craiova, 200585 Craiova, Romania
Interests: microwave heating; welding; nanostructured sensors; ultrasonic soldering

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Guest Editor
Department of Applied Mechanics, Faculty of Mechanics, University of Craiova, Calea Bucuresti Str. No.107, 200512 Craiova, Romania
Interests: biomechanics; biocomposite materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Microwave processing represents a technology that can be applied to various domains, such as material sintering, waste treatment, materials joining, surface treatment and cleaning, and many more. However, microwave processing has proven to be unstable and to have a low rate of process reproducibility. In addition, thermal runaway phenomena must be studied in order to avoid damage to the materials. This Special Issue intends to address all these issues by publishing original scientific articles that can provide knowledge related to material processing in the field of microwaves. Topics of interest include, but are not limited to:

  • Microwave heating mechanism;
  • Thermal runaway phenomenon;
  • Modeling and simulation of thermal field;
  • Modeling and simulation of electrical field at microwave heating;
  • Microwave soldering, microwave–plasma welding;
  • Surface treatment in microwave field;

Domestic and industrial waste treatment/incineration in microwave field.

Dr. Sorin Vasile Savu
Prof. Dr. Tarnita Daniela
Guest Editors

Manuscript Submission Information

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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. 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 sintering
  • thermal field
  • microwave soldering
  • waste treatment

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Published Papers (1 paper)

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Research

21 pages, 10261 KiB  
Article
Research on the Influence of the Defects of Materials on Thermal Runaway in Microwave Hybrid Heating for Sintering Processes
by Sorin Vasile Savu, Daniela Tarniță, Iulian Stefan, Gabriel Constantin Benga, Ionel Danut Savu, Nicușor-Alin Sîrbu, Ilie Dumitru, Marin Andretti Ciungu, Mihai Ursu and Cristian Cosma
Appl. Sci. 2025, 15(8), 4115; https://doi.org/10.3390/app15084115 - 9 Apr 2025
Viewed by 265
Abstract
Thermal runaway in microwave hybrid heating of ceramics is an unwanted phenomenon which damages the sintered products. The aim of the present study is to establish to what extent the pressing forces of 100, 200 and 300 MPa used in the compaction process [...] Read more.
Thermal runaway in microwave hybrid heating of ceramics is an unwanted phenomenon which damages the sintered products. The aim of the present study is to establish to what extent the pressing forces of 100, 200 and 300 MPa used in the compaction process and the optimization of the microwave heating mechanism can reduce the occurrence of thermal runaway. Modeling and simulation of temperature distributions alongside defects created by the compaction process are performed in order to evaluate their influence on the stability of MHH. Based on CT scanning, defects with dimensions from 110 to 515 μm are studied in terms of local overheating and how the thermal runaway can lead to internal arc discharge. The results show that samples compacted at 100 MPa and exposed at 600 W injected power reach temperatures peaks around 1010 °C and are affected by major cracks and large melted areas. The samples compacted at 200 and 300 MPa present similar behavior, without arc discharge, but are also affected by cracks. Based on these findings, the MHH process can be applied to sintering processes but with a reduced injected power below 300 W for samples compacted with pressing forces higher than 300 MPa. Full article
(This article belongs to the Special Issue Advanced Microwave Technology for Processing)
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