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Micromachines
Special Issues
Functional Ceramics: From Fundamental Research to Applications
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Functional Ceramics: From Fundamental Research to Applications

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "D：Materials and Processing".

Deadline for manuscript submissions: 31 October 2024 | Viewed by 643

Special Issue Editors

Prof. Dr. Chien-Min Cheng

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Guest Editor
Department of Electronic Engineering, Southern Taiwan University of Science and Technology, Tainan 710301, Taiwan
Interests: electroceramics; thin films; piezoelectric ceramics
Prof. Dr. Kai-Huang Chen

E-Mail Website
Guest Editor
Department of Electronic Engineering, Center for Environmental Toxin and Emerging-Contaminant Research, Super Micro Mass Research & Technology Center, Cheng Shiu University, Kaohsiung 83347, Taiwan
Interests: non-volatile resistor random memory devices; ferroelectric memory devices; thin films; functional ceramics applications
Special Issues, Collections and Topics in MDPI journals
Dr. Chih-Lung Tseng

E-Mail Website
Guest Editor
Interdisciplinary Program of Green and Information Technology, National Taitung University, Taitung 95092, Taiwan
Interests: optical fiber laser; optoelectronic semiconductor; semiconductor physics; electronic circuit design

Special Issue Information

Dear Colleagues,

Functional ceramics have gradually gained importance in recent years; these interesting materials have been used in electronic devices in many important applications. Functional ceramics is an applied science that studies the design, material composition, material properties, and applications of substances and devices made of functional ceramics. Electronic semiconductor devices and optical coatings are the main applications of functional ceramic thin-film technology today. This technology has a wide range of applications. Much research has used different thin films for computer storage devices, pharmaceuticals, manufacturing thin-film batteries, dye-sensitized solar cells, and more. Due to the relatively high hardness of ceramic materials, such films are used to protect substrates from corrosion, oxidation, and wear. The Special Issue on functional ceramics presents the growth, characteristics, and applications of nanostructured thin films in various domains. We invite contributions from leading groups in the field with the aim of giving a balanced view of the current state of the art in this discipline.

Prof. Dr. Chien-Min Cheng
Prof. Dr. Kai-Huang Chen
Dr. Chih-Lung Tseng
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 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. Micromachines 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 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

  • functional ceramics
  • thin films
  • piezoelectric ceramics
  • computer storage devices
  • pharmaceuticals
  • manufacturing thin-film batteries
  • dye-sensitized solar cells

Published Papers (1 paper)

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Research

12 pages, 4267 KiB  
Article
Microstructure and Dielectric Properties of Gradient Composite BaxSr1−xTiO3 Multilayer Ceramic Capacitors
by Xiaobing Jili, Libin Gao, Hongwei Chen and Jihua Zhang
Micromachines 2024, 15(4), 470; https://doi.org/10.3390/mi15040470 - 29 Mar 2024
Cited by 1 | Viewed by 448
Abstract
Multilayer ceramic capacitors (MLCCs) prepared using Ba1−xSrxTiO3 (BST) ceramics exhibit high dielectric constants (~1000), low dielectric loss (<0.01), and high breakdown voltage, with particularly significant tunability in dielectric properties (>50%) and with poor temperature stability. Doping-dominated temperature stability [...] Read more.
Multilayer ceramic capacitors (MLCCs) prepared using Ba1−xSrxTiO3 (BST) ceramics exhibit high dielectric constants (~1000), low dielectric loss (<0.01), and high breakdown voltage, with particularly significant tunability in dielectric properties (>50%) and with poor temperature stability. Doping-dominated temperature stability improvements often result in unintended loss of dielectric properties. A non-doping method has been proposed to enhance the temperature stability of BST capacitors. The composite gradient multilayer (CGML) ceramic capacitors with BaxSr1−xTiO3, where 0.5 < x < 0.8, as the dielectric, were prepared using a tape-casting method and sintered at 1250 °C. There exists a dense microstructure and continuous interface between the BaxSr1−xTiO3 thick film and the Pt electrodes. CGML ceramic capacitors feature a high dielectric constant at 1270, a low dielectric loss of less than 0.007, and excellent frequency and temperature stability. The capacitor showcases remarkable dielectric properties with a substantial tunability of 68% at 100 kV/cm, along with a notably consistent tunability ranging from 20% to 28% at 15 kV/cm across temperatures spanning from 30 to 100 °C, outperforming single-component BST-MLCCs in dielectric performance. Full article
(This article belongs to the Special Issue Functional Ceramics: From Fundamental Research to Applications)
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