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Piezoelectric/Ferroelectric Ceramic Materials and Devices
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Piezoelectric/Ferroelectric Ceramic Materials and Devices

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced and Functional Ceramics and Glasses".

Deadline for manuscript submissions: closed (20 April 2024) | Viewed by 1727

Special Issue Editor

Prof. Dr. Bijun Fang

E-Mail Website
Guest Editor
School of Materials Science & Engineering, Changzhou University, Changzhou, China
Interests: perovskite structure; high-curie temperature; high- electromechanical performance; morphotropic phase boundary effects; ferroelectric phase transition; domain configuration; energy storage density; multifunctional application; ferroelectric photocatalysis

Special Issue Information

Dear Colleagues,

As important functional materials, piezoelectric/ferroelectric materials have obtained widespread applications in transducers, sensors, actuators etc. With the rapid development of science and technology, extensive applications appear, such as high-Curie temperature (TC) piezoelectric materials in harsh operation conditions, high-electromechanical piezoelectrics/ferroelectrics in high-power applications such as sonar systems, relaxor-like ferroelectric/dielectric capacitors as energy-storage capacitors in pulse power equipment, rare-earth-doped piezoelectrics/ferroelectrics in multifunctional applications such as optoelectronic field, nanostructured ferroelectrics as ferroelectric photocatalysts, and so on.

Through the proper selection of materials, versatile piezoelectric/ferroelectric-based devices have been designed, such as bulk ceramic sensors, composite sensor configurations, and future developments are expected and will have great value. Furthermore, significant progress has been made in materials preparation and development, including nano-sized precursor powders prepared by liquid-phase techniques, novel forming techniques such as powder injection molding, novel sintering techniques such reaction sintering and cold sintering processes, and so on. This extensive progress has promoted the development of piezoelectric/ferroelectric materials and devices.

The forthcoming Special Issue will focus on recent advancements in the field of Piezoelectric/Ferroelectric Ceramic Materials and Devices. Topics include but are not limited to:

  • Lead-based piezoelectric/ferroelectric materials and devices;
  • Lead-free piezoelectric/ferroelectric materials and devices;
  • Novel processing of piezoelectric/ferroelectric materials;
  • Morphotropic phase boundary effects;
  • Ferroelectric phase transition;
  • Piezoelectric/ferroelectric nanostructures;
  • Piezoelectric/ferroelectric size effects;
  • Domain configuration of piezoelectric/ferroelectric materials;
  • Applications of piezoelectric/ferroelectric materials—piezoelectric devices, pyroelectric devices, medical ultrasonic transducers, ferroelectric memory technology;
  • Novel applications of piezoelectric/ferroelectric materials.

Prof. Dr. Bijun Fang
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. Materials 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 2600 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

  • perovskite structure
  • high Curie temperature
  • high electromechanical performance
  • morphotropic phase boundary effects
  • ferroelectric phase transition
  • domain configuration
  • energy storage density
  • multifunctional application
  • ferroelectric photocatalysis

Published Papers (2 papers)

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Research

16 pages, 6939 KiB  
Article
Synthesis of a Stable and High-Concentration BaHfxTi1−xO3 Sol–Gel for High Electromechanical Performance of Bulk Ceramics
by Damien Brault, Thomas Richardot, Philippe Boy, Philippe Belleville, Franck Levassort and Maxime Bavencoffe
Materials 2023, 16(23), 7452; https://0-doi-org.brum.beds.ac.uk/10.3390/ma16237452 - 30 Nov 2023
Cited by 1 | Viewed by 857
Abstract
Lead-based materials are widely used in piezoceramics due to their high electromechanical properties. However, due to environmental protection and sustainable development, the use of the toxic element lead (Pb) in electronic devices is strictly restricted, therefore requiring the rapid development of piezoelectric-based devices [...] Read more.
Lead-based materials are widely used in piezoceramics due to their high electromechanical properties. However, due to environmental protection and sustainable development, the use of the toxic element lead (Pb) in electronic devices is strictly restricted, therefore requiring the rapid development of piezoelectric-based devices with lead-free ceramics. In this context, a lead-free doped barium titanate was studied with a dual objective. First, a new sol–gel method to synthesize Hf4+-doped BaHfxTi1−xO (BHT) with x = 0.05, 0.075, and 0.10 is presented. Such BHT sols were prepared at high concentrations of up to 1 M. Dilution in ethylene glycol allowed parameters (viscosity, colloid sizes, etc.) to be controlled, which ensured a time-stable sol for several months at room temperature. Second, densified bulk ceramics with attrited powders were obtained from these sols and showed very good electromechanical properties, with a thickness coupling factor of kt = 47% (BaHf0.05Ti0.95O3 sintered at 1500 °C/6 h). These results are a first step that will allow the processing of lead-free piezoelectric thick films using a sol–gel composite method for vibrational energy harvesting applications. Full article
(This article belongs to the Special Issue Piezoelectric/Ferroelectric Ceramic Materials and Devices)
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19 pages, 6183 KiB  
Article
Multifunctional Characteristics of BCTH:0.5% Sm3+ Ceramics Prepared via Hydrothermal Method and Powder Injection Molding
by Rong Zhuang, Qiushi Wang, Bijun Fang, Shuai Zhang, Xiaolong Lu and Jianning Ding
Materials 2023, 16(21), 6910; https://0-doi-org.brum.beds.ac.uk/10.3390/ma16216910 - 27 Oct 2023
Viewed by 549
Abstract
Briefly, 0.005-mol Sm3+-doped (Ba0.85Ca0.15)(Ti0.9Hf0.1)O3 ([(Ba0.85Ca0.15)0.995Sm0.005](Ti0.9Hf0.1)O3, BCTH:0.005Sm3+) lead-free ceramics were prepared via hydrothermal method and powder injection [...] Read more.
Briefly, 0.005-mol Sm3+-doped (Ba0.85Ca0.15)(Ti0.9Hf0.1)O3 ([(Ba0.85Ca0.15)0.995Sm0.005](Ti0.9Hf0.1)O3, BCTH:0.005Sm3+) lead-free ceramics were prepared via hydrothermal method and powder injection molding using paraffin and oleic acid as binders, and the effects of preparation method and sintering conditions on microstructure, dielectric behavior and optical properties were investigated. XRD Rietveld refinement reveals the coexistence of orthogonal, rhombohedral and tetragonal phases, in which the crystal structure and phase fraction are influenced greatly by sintering temperature and holding time. The ceramics present enhanced relaxor behavior and frequency dispersion phenomenon as compared with those prepared by the solid-state sintering method, and the diffusive index γ value is within 1.421–1.673. The transition mechanism and luminescence performance of BCTH:0.005 Sm3+ were analyzed by Blasse formula, photoluminescence spectrum and fluorescence lifetimes, where emission peaks show slight blueshift, fluorescence decay lifetime becomes shorter, electric multipole interaction dominates the energy transfer mechanism, and the down-conversion luminescence is one-photon absorption process. The CIE chromaticity color coordinate (0.4746, 0.5048), correlated color temperature 3134 K and color purity 93.58% are achieved, which reveals that the BCTH:0.005 Sm3+ ceramics express high quality yellow emission rather than orange-red light of the hydrothermal method synthesized nano-powder, and have potential application in optical field. Full article
(This article belongs to the Special Issue Piezoelectric/Ferroelectric Ceramic Materials and Devices)
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