{"title":"研究和制造用于高频应用的钛酸锶钙无铅陶瓷电容器","authors":"Parthiban Palani, Amina Tachafine, Christophe Poupin, Didier Fasquelle","doi":"10.1007/s10971-024-06433-6","DOIUrl":null,"url":null,"abstract":"<p>SrTiO<sub>3</sub> based lead-free ceramics has enormous potential for dielectric capacitors. This work focuses on the fabrication of small size Sr<sub>1-<i>x</i></sub>Ca<sub><i>x</i></sub>TiO<sub>3</sub> (SCT) ceramic capacitors. Initially, the ceramics with a high doping concentration of 0.36 ≤ <i>x</i> ≤ 0.40 were prepared using the sol-gel method and characterized for their structural, morphological (grain), and dielectric properties. An increase in calcium doping concentration revealed a notable decline in the dielectric dissipation factor. Further, small size ceramic capacitors with <b>≈</b> 1mm<sup>2</sup> dimensions were micro-machined in order to replicate the size of high-frequency commercial capacitors and to emphasize the real potential of this class of ceramics for dielectric capacitors. The dielectric properties, measured from 100 Hz to 1 GHz, such as permittivity (ε′), loss tangent (tgδ), and quality coefficient (Q) revealed that these materials could have a great interest in the development of monolithic ceramic capacitors dedicated to a very large frequency range from 100 Hz to 1 GHz applications.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Study and manufacturing of strontium calcium titanate lead-free ceramic capacitors for high-frequency applications\",\"authors\":\"Parthiban Palani, Amina Tachafine, Christophe Poupin, Didier Fasquelle\",\"doi\":\"10.1007/s10971-024-06433-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>SrTiO<sub>3</sub> based lead-free ceramics has enormous potential for dielectric capacitors. This work focuses on the fabrication of small size Sr<sub>1-<i>x</i></sub>Ca<sub><i>x</i></sub>TiO<sub>3</sub> (SCT) ceramic capacitors. Initially, the ceramics with a high doping concentration of 0.36 ≤ <i>x</i> ≤ 0.40 were prepared using the sol-gel method and characterized for their structural, morphological (grain), and dielectric properties. An increase in calcium doping concentration revealed a notable decline in the dielectric dissipation factor. Further, small size ceramic capacitors with <b>≈</b> 1mm<sup>2</sup> dimensions were micro-machined in order to replicate the size of high-frequency commercial capacitors and to emphasize the real potential of this class of ceramics for dielectric capacitors. The dielectric properties, measured from 100 Hz to 1 GHz, such as permittivity (ε′), loss tangent (tgδ), and quality coefficient (Q) revealed that these materials could have a great interest in the development of monolithic ceramic capacitors dedicated to a very large frequency range from 100 Hz to 1 GHz applications.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphical Abstract</h3>\",\"PeriodicalId\":664,\"journal\":{\"name\":\"Journal of Sol-Gel Science and Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-06-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Sol-Gel Science and Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s10971-024-06433-6\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sol-Gel Science and Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s10971-024-06433-6","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Study and manufacturing of strontium calcium titanate lead-free ceramic capacitors for high-frequency applications
SrTiO3 based lead-free ceramics has enormous potential for dielectric capacitors. This work focuses on the fabrication of small size Sr1-xCaxTiO3 (SCT) ceramic capacitors. Initially, the ceramics with a high doping concentration of 0.36 ≤ x ≤ 0.40 were prepared using the sol-gel method and characterized for their structural, morphological (grain), and dielectric properties. An increase in calcium doping concentration revealed a notable decline in the dielectric dissipation factor. Further, small size ceramic capacitors with ≈ 1mm2 dimensions were micro-machined in order to replicate the size of high-frequency commercial capacitors and to emphasize the real potential of this class of ceramics for dielectric capacitors. The dielectric properties, measured from 100 Hz to 1 GHz, such as permittivity (ε′), loss tangent (tgδ), and quality coefficient (Q) revealed that these materials could have a great interest in the development of monolithic ceramic capacitors dedicated to a very large frequency range from 100 Hz to 1 GHz applications.
期刊介绍：
The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.
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