Advances in Electronic Ceramics, 2nd Edition

A special issue of Ceramics (ISSN 2571-6131).

Deadline for manuscript submissions: 31 December 2025 | Viewed by 3436

Special Issue Editors


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Guest Editor
Precision Acousto-Optic Instrument Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, China
Interests: ferroelectric; piezoelectric; dielectric; electroceramics; MLCC; LTCC
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Guest Editor
Department of Physics, Garden Campus, Abdul Wali Khan University Mardan, Mardan 23200, KP, Pakistan
Interests: microwave dielectrics; capacitors; thermoelectrics; energy storage; energy harvesting; electromagnetic wave absorption
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Guest Editor
College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China
Interests: ferroelectric; piezoelectric; capacitors

Special Issue Information

Dear Colleagues,

Building upon the groundbreaking research and innovations presented in the first edition, we are delighted to announce second edition of this Special Issue, in which we will be continuing our exploration of the advances in electronic ceramics.

Electronic ceramics are characterized by their unique properties, making them indispensable in various applications, including integrated circuits, microwave communication, packaging ceramics, energy storage, energy generation, and optoelectronics. In recent years, electronic ceramics have undergone significant developments driven by the increasing demands of modern technology.

These advances have profoundly impacted various industries, as electronic ceramics have become fundamental components of a wide range of electronic devices.

These advancements are underpinned by a comprehensive understanding of the relationship between processing, structure, microstructure, and properties. By intentionally introducing dopants into pristine materials, researchers can precisely manipulate the band structure of electronic ceramics, enabling fine-tuned control and customization of their properties. To further foster the growth of electronic ceramics and address current and future challenges in the field, a Special Issue titled "Advances in Electronic Ceramics" has been launched. This dedicated platform focuses on topics such as synthesis procedures, crystal structures, and the functional characteristics of electronic ceramics. It aims to facilitate the progression of electronic ceramics and their pivotal role in the ever-evolving landscape of technology.

Prof. Dr. Dawei Wang
Dr. Raz Muhammad
Dr. Zhilun Lu
Dr. Fangfang Zeng
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. Ceramics is an international peer-reviewed open access quarterly journal published by MDPI.

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Keywords

  • powder synthesis
  • ceramic processing
  • electronic ceramics
  • piezoelectric ceramics
  • ferroelectric ceramics
  • dielectric ceramics
  • thermoelectric ceramics
  • multiferroic ceramics
  • ceramics for energy storage
  • ceramics for energy harvesting

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Related Special Issue

Published Papers (7 papers)

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Research

18 pages, 2148 KiB  
Article
Structural and Dielectric Impedance Studies of Mixed Ionic–Electronic Conduction in SrLaFe1−xMnxTiO6 (x = 0, 0.33, 0.67, and 1.0) Double Perovskites
by Abdelrahman A. Elbadawi, Elsammani A. Shokralla, Mohamed A. Siddig, Obaidallah A. Algethami, Abdullah Ahmed Alghamdi and Hassan H. E. Idris
Ceramics 2025, 8(3), 87; https://doi.org/10.3390/ceramics8030087 - 7 Jul 2025
Viewed by 166
Abstract
The structural and electrical properties of double perovskite compounds SrLaFe1−xMnxTiO6−δ (x = 0, 0.33, 0.67, and 1.0) were studied using X-ray diffraction (XRD) and dielectric impedance measurements. The reparation of perovskite compounds was successfully achieved through the precursor [...] Read more.
The structural and electrical properties of double perovskite compounds SrLaFe1−xMnxTiO6−δ (x = 0, 0.33, 0.67, and 1.0) were studied using X-ray diffraction (XRD) and dielectric impedance measurements. The reparation of perovskite compounds was successfully achieved through the precursor solid-state reaction in air at 1250 °C. The purity phase and crystal structures of perovskite compounds were determined by means of the standard Rietveld refinement method using the FullProf suite. The best fitting results showed that SrLaFeTiO6−δ was orthorhombic with space group Pnma, and both SrLaFe0.67Mn0.33TiO6−δ and SrLaFe0.33Mn0.67TiO6−δ were cubic structures with space group Fm3m, while SrLaMnTiO6−δ was tetragonal with a I/4m space group. The charge density maps obtained for these structures indicated that the compounds show an ionic and mixed ionic–electronic conduction. The dielectric impedance measurements were carried out in the range of 20 Hz to 1 MHz, and the analysis showed that there is more than one relaxation mechanism of Debye type. Doping with Mn was found to reduce the dielectric impedance of the samples, and the major contribution to the dielectric impedance was established to change from a capacitive for SrLaFeTiO6−δ to a resistive for SrLaMnTiO6−δ. The fall in values of electrical resistance may be related to the possible occurrence of the double exchange (DEX) mechanism among the Mn ions, provided there is oxygen deficiency in the samples. DC-resistivity measurements revealed that SrLaFeTiO6−δ was an insulator while SrLaMnTiO6−δ was showing a semiconductor–metallic transition at ~250 K, which is in support of the DEX interaction. The dielectric impedance of SrLaFe0.67Mn0.33TiO6−δ was found to be similar to that of (La,Sr)(Co,Fe)O3-δ, the mixed ionic–electronic conductor (MIEC) model. The occurrence of a mixed ionic–electronic state in these compounds may qualify them to be used in free lead solar cells and energy storage technology. Full article
(This article belongs to the Special Issue Advances in Electronic Ceramics, 2nd Edition)
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11 pages, 2553 KiB  
Article
Effect of Ni2+ Doping on the Crystal Structure and Properties of LiAl5O8 Low-Permittivity Microwave Dielectric Ceramics
by Xuekai Lan, Huatao Tang, Bairui Chen and Bin Tian
Ceramics 2025, 8(3), 85; https://doi.org/10.3390/ceramics8030085 - 4 Jul 2025
Viewed by 5
Abstract
Low-permittivity microwave dielectric ceramics are essential for high-frequency communication and radar systems, as they minimize signal delay and interference, thereby enabling compact and high-performance devices. In this study, LiAl5−xNixO8−0.5x (x = 0.1–0.5) ceramics were synthesized [...] Read more.
Low-permittivity microwave dielectric ceramics are essential for high-frequency communication and radar systems, as they minimize signal delay and interference, thereby enabling compact and high-performance devices. In this study, LiAl5−xNixO8−0.5x (x = 0.1–0.5) ceramics were synthesized via a solid-state reaction method to investigate the effects of Ni2+ substitution on crystal structure, microstructure, and dielectric properties. X-ray diffraction and Rietveld refinement reveal a phase transition from the P4332 to the Fd3m spinel structure at x ≈ 0.3, accompanied by a systematic increase in the lattice parameter (7.909–7.975 Å), attributed to the larger ionic radius of Ni2+ compared to Al3+. SEM analysis confirms dense microstructures with relative densities exceeding 95% and grain size increases from less than 1 μm at x = 0.1 to approximately 2 μm at x = 0.5. Dielectric measurements show a decrease in permittivity (εr) from 8.24 to 7.77 and in quality factor (Q × f) from 34,605 GHz to 20,529 GHz with increasing Ni content, while the temperature coefficient of the resonant frequency (τf) shifts negatively from −44.8 to −69.1 ppm/°C. Impedance spectroscopy indicates increased conduction losses and reduced activation energy with higher Ni2+ concentrations. Full article
(This article belongs to the Special Issue Advances in Electronic Ceramics, 2nd Edition)
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11 pages, 998 KiB  
Article
Study on the Absorbing Properties of V-Doped MoS2
by Jiang Zou and Quan Xie
Ceramics 2025, 8(3), 84; https://doi.org/10.3390/ceramics8030084 - 2 Jul 2025
Viewed by 15
Abstract
This study employed a hydrothermal method to prepare V-doped MoS2. The influence of varying filler ratios (30 wt%, 40 wt%, 50 wt%) on its absorption properties was analyzed. For annealing studies, a precursor powder with a 40 wt% filler ratio was [...] Read more.
This study employed a hydrothermal method to prepare V-doped MoS2. The influence of varying filler ratios (30 wt%, 40 wt%, 50 wt%) on its absorption properties was analyzed. For annealing studies, a precursor powder with a 40 wt% filler ratio was heat-treated at 600 °C for 2 h. The results obtained through characterization and testing indicate that the unannealed 40 wt% filler sample demonstrates superior absorption performance, with minimum reflection loss (RLmin) of −32.24 dB, an effective absorption bandwidth (EAB) of 4.40 GHz, and 99.9% electromagnetic (EM) wave attenuation. However, upon subjecting the sample with a 40 wt% filling ratio to annealing treatment, a notable decrease in impedance matching degree was observed, and regions with impedance matching values close to 1 were no longer present. Consequently, it can be concluded that at a filling ratio of 40 wt%, the sample’s excellent attenuation coefficient in conjunction with its good impedance matching collectively contribute to its superior comprehensive absorption performance. Full article
(This article belongs to the Special Issue Advances in Electronic Ceramics, 2nd Edition)
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9 pages, 15356 KiB  
Article
Fabrication and Properties of ITTO Segments for Cylindrical Targets by Pressureless Oxygen Atmosphere Sintering Method
by Jiwen Xu, Fangzhou Wu, Yuan Yao, Ling Yang, Guisheng Zhu and Huarui Xu
Ceramics 2025, 8(2), 75; https://doi.org/10.3390/ceramics8020075 - 18 Jun 2025
Viewed by 227
Abstract
Cylindrical targets have a high utilization rate, but are difficult to manufacture. A large hollow ITTO segment with thin walls was prepared by cold isostatic pressure and two-stage sintering. The fabrication process yielded a segment with an outer diameter of 153 mm, an [...] Read more.
Cylindrical targets have a high utilization rate, but are difficult to manufacture. A large hollow ITTO segment with thin walls was prepared by cold isostatic pressure and two-stage sintering. The fabrication process yielded a segment with an outer diameter of 153 mm, an inner diameter of 135 mm, and a length of 700 mm, indicating a length to thickness ratio of up to 78. The dense and uniform green bodies ensure the achievement of high density and uniformity of the sintered body throughout its volume. The segment exhibited a high relative density of about 99.5% and a low resistivity of below 3.4 × 10−4 Ω·cm. The density and resistivity illustrate a minimal inhomogeneity along the length of the segment. The segment exhibits a cubic bixbyite phase and is characterized by densely packed fine grains with an average size of several microns. Therefore, these results establish a substantial foundation for the large-scale production of cylindrical ITTO segments. Full article
(This article belongs to the Special Issue Advances in Electronic Ceramics, 2nd Edition)
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11 pages, 1806 KiB  
Article
Enhanced Electrical Property and Thermal Stability in Lead-Free BNT–BT–BF Ceramics
by Kangle Zhou, Enxiang Hou, Yanfeng Qu, Yan Mu and Junjun Wang
Ceramics 2025, 8(2), 70; https://doi.org/10.3390/ceramics8020070 - 7 Jun 2025
Viewed by 854
Abstract
The synergistic combination of outstanding electrical properties and exceptional thermal stability holds significant implications for advancing piezoelectric ceramic applications. In this work, lead-free ((1−x)(0.94Bi0.5Na0.5TiO3-0.06BaTiO3)-xBiFeO3 (x = 0.08, 0.10, 0.12)) ceramics were synthesized using a [...] Read more.
The synergistic combination of outstanding electrical properties and exceptional thermal stability holds significant implications for advancing piezoelectric ceramic applications. In this work, lead-free ((1−x)(0.94Bi0.5Na0.5TiO3-0.06BaTiO3)-xBiFeO3 (x = 0.08, 0.10, 0.12)) ceramics were synthesized using a conventional solid-state method, with systematic investigation of phase evolution, microstructural characteristics, and their coupled effects on electromechanical performance and thermal stability. Rietveld refinement analysis revealed a rhombohedral–tetragonal (R–T) phase coexistence, where the tetragonal phase fraction maximized at x = 0.10. This structural optimization enabled the simultaneous enhancement of piezoelectricity and thermal resilience. The x = 0.10 composition achieved recorded values of d33 = 132 pC/N, g33 = 26.11 × 10−3 Vm/N, and a depolarization temperature Td = 105 °C. These findings establish BiFeO3 doping as a dual-functional strategy for developing high-performance lead-free ceramics. Full article
(This article belongs to the Special Issue Advances in Electronic Ceramics, 2nd Edition)
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19 pages, 6066 KiB  
Article
Pseudocapacitive Behavior of Protonic Niobate Nanowires in Aqueous Acidic Electrolyte
by Adilar Gonçalves dos Santos Júnior, Jessica Gotardi, Edna Jerusa Pacheco Sampaio, Cristiano Campos Araújo, Gabriel Luiz Rasch, Antonio Marcos Helgueira de Andrade, Roberto Hübler, Andrés Cuña Suárez and Célia de Fraga Malfatti
Ceramics 2025, 8(2), 59; https://doi.org/10.3390/ceramics8020059 - 20 May 2025
Viewed by 352
Abstract
Niobium-based oxides are being increasingly evaluated as materials for energy storage applications. Additionally, the use of these oxides as cathodes in aqueous electrolytes has shown promise. Based on this, the pseudocapacitive behavior of protonic niobate nanowires in an aqueous acidic electrolyte (1 M [...] Read more.
Niobium-based oxides are being increasingly evaluated as materials for energy storage applications. Additionally, the use of these oxides as cathodes in aqueous electrolytes has shown promise. Based on this, the pseudocapacitive behavior of protonic niobate nanowires in an aqueous acidic electrolyte (1 M H2SO4) was evaluated for the first time. The material was obtained in two simple sequential steps. First, hydrothermal synthesis resulted in sodium niobate; second was ionic exchange (in two concentrations of 2 M and 0.1 M HNO3), where the protonic niobate was obtained. The resulting protonic niobate was characterized by FEG-SEM, the results demonstrated that the morphology of the oxide was concentration-dependent in the ionic exchange step, and EDS analysis was used to validate the procedure. Using DRX, Raman spectroscopy, and FTIR analysis, the transformation of sodium niobate to protonic niobate was evidenced. The electrochemical tests demonstrated that the protonic niobate presented pseudocapacitive behavior when employed as the cathode in 1 M H2SO4, and the ionic exchange in 2 M HNO3 promoted a better specific capacitance, reaching 119.8 mF·cm−2 at a 1 mA·cm−2 current density. Full article
(This article belongs to the Special Issue Advances in Electronic Ceramics, 2nd Edition)
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17 pages, 5229 KiB  
Article
CuNb2O6 Particles Obtained via Solid-State Reaction and Application as Electrocatalyst for Oxygen Evolution Reaction
by Kívia F. G. de Araújo, Cleber S. Lourenço, Vitor M. S. F. Souza, Matheus D. da Silva, Gabriel D. S. Vasconcelos, Maria J. S. Lima, Jakeline R. D. Santos, Kelly C. Gomes, Francisco J. A. Loureiro, Marco A. Morales and Uílame U. Gomes
Ceramics 2025, 8(2), 55; https://doi.org/10.3390/ceramics8020055 - 13 May 2025
Viewed by 1029
Abstract
Copper niobate (CuNb2O6) is an important compound due to its low cost and polymorphism, presenting monoclinic and orthorhombic phases, which leads to unique physical–chemical properties. The electrochemical performance of efficient electrocatalysts for the oxygen evolution reaction (OER) is of [...] Read more.
Copper niobate (CuNb2O6) is an important compound due to its low cost and polymorphism, presenting monoclinic and orthorhombic phases, which leads to unique physical–chemical properties. The electrochemical performance of efficient electrocatalysts for the oxygen evolution reaction (OER) is of importance in order to produce hydrogen gas from water. In this context, this work reports the synthesis of CuNb2O6 particles by high-energy milling for 5 and 10 h, and subsequent thermal treatment at 900 °C for 3 h. The samples were characterized by XRD, XRF, FESEM, RAMAN, UV–Vis, and FT-IR techniques, and were applied as electrocatalysts for the OER. The samples had both monoclinic and orthorhombic crystalline phases. The band gaps were in the range of 1.92 to 2.06 eV. In the application for the OER, the particles obtained by 5 and 10 h of milling exhibited overpotentials of 476 and 347 mV vs. RHE at 10 mA cm−2, respectively. In chronopotentiometry experiments for 15 h, the samples exhibited excellent chemical stability. The electrochemical performance of the sample milled for 10 h showed superior performance (347 mV vs. RHE) when compared with electrocatalysts of the same type, demonstrating that the methodology used to synthesize the samples is promising for energy applications. Full article
(This article belongs to the Special Issue Advances in Electronic Ceramics, 2nd Edition)
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