Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
3.9
2.6
Journals
Magnetochemistry
Special Issues
Development and Applications of Advanced Magnetic Ceramic Materials
share announcement

Development and Applications of Advanced Magnetic Ceramic Materials

A special issue of Magnetochemistry (ISSN 2312-7481). This special issue belongs to the section "Magnetic Materials".

Deadline for manuscript submissions: closed (30 December 2021) | Viewed by 7801

Special Issue Editor

Dr. Vasiliki Tsakaloudi

E-Mail Website
Guest Editor
Centre for Research and Technology Hellas (CERTH), 57001 Thermi, Greece
Interests: targeted material design and development of soft ferrites; grain boundary engineering; polycrystalline microstructure engineering; power electronics; automotive applications; telecommunication applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue, entitled “Development and Applications of Advanced Magnetic Ceramic Materials”, aims to include the newest and most important research in the field of magnetic ceramics, in terms of chemical composition design, synthesis processes, as well as morphological and microstructural characteristics towards specific magnetic performance. With an almost 100-year history of advanced magnetic ceramics, global market trends have governed a wide range of applications, such as in motors, rotors, EMI suppression, signal processing, power conversion, data storage, telecommunications, green technologies, electric vehicles, wireless charging, handheld devices, biomedical applications, and many others. Thus, it is of major significance to explore and extend the current knowledge on material performance and potential, so as to enhance future technological breakthroughs in the field. As a Guest Editor of this Special Issue of the open-access journal Magnetochemistry, I am honored to invite you to contribute your original manuscripts and share new important results with the scientific community.

Dr. Vasiliki Tsakaloudi
Guest Editor

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 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. Magnetochemistry 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 2200 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

  • ferrimagnetism
  • magnetic ceramic materials
  • spinels
  • hexagonal ferrites
  • garnets
  • synthesis process
  • magnetic permeability
  • power losses
  • polycrystalline microstructure
  • doping

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

14 pages, 3509 KiB  
Article
Phase Formation, Microstructure and Permeability of Fe-Deficient Ni-Cu-Zn Ferrites, (I): Effect of Sintering Temperature
by Christoph Priese and Jörg Töpfer
Magnetochemistry 2021, 7(8), 118; https://doi.org/10.3390/magnetochemistry7080118 - 14 Aug 2021
Cited by 3 | Viewed by 2252
Abstract
We have studied the densification, phase formation, microstructure, and permeability of stoichiometric and Fe-deficient Ni-Cu-Zn ferrites of composition Ni0.30Cu0.20Zn0.50+zFe2-zO4-(z/2) with 0 ≤ z ≤ 0.06 sintered at temperatures from 900 °C to 1150 °C. [...] Read more.
We have studied the densification, phase formation, microstructure, and permeability of stoichiometric and Fe-deficient Ni-Cu-Zn ferrites of composition Ni0.30Cu0.20Zn0.50+zFe2-zO4-(z/2) with 0 ≤ z ≤ 0.06 sintered at temperatures from 900 °C to 1150 °C. The shrinkage is shifted from 1000 °C for z = 0 towards lower temperatures and reaches its maximum rate at 900 °C for z = 0.02. Stoichiometric ferrites show regular growth of single-phase ferrite grains if sintered at Ts ≤ 1100 °C. Sintering at 1150 °C leads to the formation of a small amount of Cu2O, triggering exaggerated grain growth. Fe-deficient compositions (z > 0) form Cu-poor stoichiometric ferrites coexisting with a minority CuO phase after sintering at 900–1000 °C. At Ts ≥ 1050 °C, CuO transforms into Cu2O, and exaggerated grain growth is observed. The formation of Cu oxide second phases is investigated using XRD, SEM, and EDX. The permeability of the ferrites increases with sintering temperature up to a maximum permeability of µ = 230 for z = 0 or µ = 580 for z = 0.02, respectively, at Ts = 1000 °C. At higher sintering temperatures, the permeability decreases, which is due to the formation of a microstructure with intra-crystalline porosity in large grains, and a non-magnetic Cu oxide grain boundary phase. Full article
(This article belongs to the Special Issue Development and Applications of Advanced Magnetic Ceramic Materials)
►▼ Show Figures

Figure 1

Review

Jump to: Research

27 pages, 8096 KiB  
Review
Magnetic Losses in Soft Ferrites
by Samuel Dobák, Cinzia Beatrice, Vasiliki Tsakaloudi and Fausto Fiorillo
Magnetochemistry 2022, 8(6), 60; https://doi.org/10.3390/magnetochemistry8060060 - 2 Jun 2022
Cited by 33 | Viewed by 4655
Abstract
We review the basic phenomenology of magnetic losses from DC to 1 GHz in commercial and laboratory-prepared soft ferrites considering recent concepts regarding their physical interpretation. This is based, on the one hand, on the identification of the contributions to the magnetization process [...] Read more.
We review the basic phenomenology of magnetic losses from DC to 1 GHz in commercial and laboratory-prepared soft ferrites considering recent concepts regarding their physical interpretation. This is based, on the one hand, on the identification of the contributions to the magnetization process provided by spin rotations and domain walls and, on the other hand, the concept of loss separation. It additionally contemplates a distinction between the involved microscopic dissipation mechanisms: spin damping and eddy currents. Selected experimental results on the broadband behavior of complex permeability and losses in Mn-Zn ferrites provide significant examples of their dependence on sintering methods, solute elements, and working temperature. We also highlight the peculiar frequency and temperature response of Ni-Zn ferrites, which can be heavily affected by magnetic aftereffects. The physical modeling of the losses brings to light the role of the magnetic anisotropy and the way its magnitude distribution, affected by the internal demagnetizing fields, acts upon the magnetization process and its dependence on temperature and frequency. It is shown that the effective anisotropy governs the interplay of domain wall and rotational processes and their distinctive dissipation mechanisms, whose contributions are recognized in terms of different loss components. Full article
(This article belongs to the Special Issue Development and Applications of Advanced Magnetic Ceramic Materials)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop