• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

锶掺杂对CaCuTiO/CaTiO陶瓷复合材料微观结构、巨介电行为及非欧姆特性的影响

Influences of Sr Doping on Microstructure, Giant Dielectric Behavior, and Non-Ohmic Properties of CaCuTiO/CaTiO Ceramic Composites.

作者信息

Jumpatam Jutapol, Putasaeng Bundit, Chanlek Narong, Thongbai Prasit

机构信息

Department of Fundamental Science, Faculty of Science and Technology, Surindra Rajabhat University, Surin 32000, Thailand.

National Metal and Materials Technology Center (MTEC), Thailand Science Park, Pathumthani 12120, Thailand.

出版信息

Molecules. 2021 Apr 1;26(7):1994. doi: 10.3390/molecules26071994.

DOI:10.3390/molecules26071994
PMID:33915919
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8036402/
Abstract

The microstructure, dielectric response, and nonlinear current-voltage properties of Sr-doped CaCuTiO/CaTiO (CCTO/CTO) ceramic composites, which were prepared by a solid-state reaction method using a single step from the starting nominal composition of CCTO/CTO/xSrO, were investigated. The CCTO and CTO phases were detected in the X-ray diffraction patterns. The lattice parameter increased with increasing Sr doping concentration. The phase compositions of CCTO and CTO were confirmed by energy-dispersive X-ray spectroscopy with elemental mapping in the sintered ceramics. It can be confirmed that most of the Sr ions substituted into the CTO phase, while some minor portion substituted into the CCTO phase. Furthermore, small segregation of Cu-rich was observed along the grain boundaries. The dielectric permittivity of the CCTO/CTO composite slightly decreased by doping with Sr, while the loss tangent was greatly reduced. Furthermore, the dielectric properties in a high-temperature range of the Sr-doped CCTO/CTO ceramic composites can be improved. Interestingly, the nonlinear electrical properties of the Sr-doped CCTO/CTO ceramic composites were significantly enhanced. The improved dielectric and nonlinear electrical properties of the Sr-doped CCTO/CTO ceramic composites were explained by the enhancement of the electrical properties of the internal interfaces.

摘要

采用固态反应法，从起始标称成分CCTO/CTO/xSrO一步制备了Sr掺杂的CaCuTiO/CaTiO（CCTO/CTO）陶瓷复合材料，并对其微观结构、介电响应和非线性电流-电压特性进行了研究。在X射线衍射图谱中检测到了CCTO和CTO相。晶格参数随Sr掺杂浓度的增加而增大。通过能谱X射线能谱和烧结陶瓷中的元素映射确认了CCTO和CTO的相组成。可以确认，大部分Sr离子取代进入CTO相，而有一小部分取代进入CCTO相。此外，沿晶界观察到了富Cu的小偏析。Sr掺杂使CCTO/CTO复合材料的介电常数略有降低，而损耗角正切大幅降低。此外，Sr掺杂的CCTO/CTO陶瓷复合材料在高温范围内的介电性能可以得到改善。有趣的是，Sr掺杂的CCTO/CTO陶瓷复合材料的非线性电学性能得到了显著增强。Sr掺杂的CCTO/CTO陶瓷复合材料介电和非线性电学性能的改善是通过内部界面电学性能的增强来解释的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/a8ffb89274b6/molecules-26-01994-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/af3501f10985/molecules-26-01994-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/4b176f694d7e/molecules-26-01994-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/3da930f86ce4/molecules-26-01994-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/a054f2c80868/molecules-26-01994-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/7362713eca62/molecules-26-01994-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/443f8118224d/molecules-26-01994-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/1178c04846e7/molecules-26-01994-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/a8ffb89274b6/molecules-26-01994-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/af3501f10985/molecules-26-01994-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/4b176f694d7e/molecules-26-01994-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/3da930f86ce4/molecules-26-01994-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/a054f2c80868/molecules-26-01994-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/7362713eca62/molecules-26-01994-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/443f8118224d/molecules-26-01994-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/1178c04846e7/molecules-26-01994-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cbe6/8036402/a8ffb89274b6/molecules-26-01994-g008.jpg

相似文献

1
Influences of Sr Doping on Microstructure, Giant Dielectric Behavior, and Non-Ohmic Properties of CaCuTiO/CaTiO Ceramic Composites.锶掺杂对CaCuTiO/CaTiO陶瓷复合材料微观结构、巨介电行为及非欧姆特性的影响
Molecules. 2021 Apr 1;26(7):1994. doi: 10.3390/molecules26071994.
2
Significantly improved giant dielectric properties and enhanced nonlinear coefficient of Ni doped CaCuTiO/CaTiO composites.镍掺杂的CaCuTiO/CaTiO复合材料的巨介电性能显著改善，非线性系数增强。
Heliyon. 2023 Jun 7;9(6):e17048. doi: 10.1016/j.heliyon.2023.e17048. eCollection 2023 Jun.
3
Sr and Zr Co-Doped CaCuTiO Ceramics with Improved Dielectric Properties.具有改善介电性能的锶和锆共掺杂钙铜钛矿陶瓷
Materials (Basel). 2022 Jun 15;15(12):4243. doi: 10.3390/ma15124243.
4
Excellent Capacitor-Varistor Properties in Lead-Free CaCuTiO-SrTiO System with a Wrinkle Structure via Interface Engineering.通过界面工程在具有褶皱结构的无铅CaCuTiO - SrTiO体系中实现优异的电容器 - 压敏电阻特性。
ACS Appl Mater Interfaces. 2020 Oct 28;12(43):48781-48793. doi: 10.1021/acsami.0c13067. Epub 2020 Oct 16.
5
EELS characterisation of bulk CaCu3Ti4O12 ceramics.块状CaCu3Ti4O12陶瓷的电子能量损失谱表征
Micron. 2006;37(5):412-9. doi: 10.1016/j.micron.2005.12.007. Epub 2006 Jan 19.
6
Exceptional dielectric and varistor properties of Sr, Zn and Sn co-doped calcium copper titanate ceramics.锶、锌和锡共掺杂钛酸钙铜陶瓷的优异介电和压敏电阻性能
RSC Adv. 2023 Apr 3;13(16):10476-10487. doi: 10.1039/d3ra00743j.
7
Effect of Europium Addition on the Microstructure and Dielectric Properties of CCTO Ceramic Prepared Using Conventional and Microwave Sintering.铕添加对采用传统烧结和微波烧结制备的CCTO陶瓷微观结构和介电性能的影响
Molecules. 2023 Feb 8;28(4):1649. doi: 10.3390/molecules28041649.
8
Mg Doping Effects on the Structural and Dielectric Properties of CaCuTiO Ceramics Obtained by Mechanochemical Synthesis.镁掺杂对机械化学合成法制备的CaCuTiO陶瓷结构和介电性能的影响
Materials (Basel). 2021 Mar 3;14(5):1187. doi: 10.3390/ma14051187.
9
Microstructure, chemical composition, and dielectric response of CaCuTiO ceramics doped with F, Al, and Mg ions.掺杂F、Al和Mg离子的CaCuTiO陶瓷的微观结构、化学成分和介电响应
Heliyon. 2023 Jul 21;9(8):e18523. doi: 10.1016/j.heliyon.2023.e18523. eCollection 2023 Aug.
10
Effects of Charge Compensation on Colossal Permittivity and Electrical Properties of Grain Boundary of CaCuTiO Ceramics Substituted by Al and Ta/Nb.电荷补偿对Al和Ta/Nb取代的CaCuTiO陶瓷晶界的巨介电常数和电学性能的影响
Molecules. 2021 May 30;26(11):3294. doi: 10.3390/molecules26113294.

引用本文的文献

1
Microstructural Evolution and High-Performance Giant Dielectric Properties of Lu/Nb Co-Doped TiO Ceramics.镥/铌共掺杂二氧化钛陶瓷的微观结构演变及高性能巨介电性能
Molecules. 2021 Nov 22;26(22):7041. doi: 10.3390/molecules26227041.
2
Significantly Improved Colossal Dielectric Properties and Maxwell-Wagner Relaxation of TiO-Rich NaYCuTiO Ceramics.富钛NaYCuTiO陶瓷的巨介电性能和麦克斯韦-瓦格纳弛豫显著改善。
Molecules. 2021 Oct 5;26(19):6043. doi: 10.3390/molecules26196043.
3
Effects of Charge Compensation on Colossal Permittivity and Electrical Properties of Grain Boundary of CaCuTiO Ceramics Substituted by Al and Ta/Nb.

本文引用的文献

1
Strong nonlinear current-voltage behaviour in perovskite-derivative calcium copper titanate.钙钛矿衍生物钛酸钙铜中的强非线性电流-电压行为
Nat Mater. 2004 Nov;3(11):774-8. doi: 10.1038/nmat1238. Epub 2004 Oct 10.
2
Giant dielectric permittivity observed in Li and Ti doped NiO.在锂和钛掺杂的氧化镍中观察到的巨大介电常数。
Phys Rev Lett. 2002 Nov 18;89(21):217601. doi: 10.1103/PhysRevLett.89.217601. Epub 2002 Oct 30.
电荷补偿对Al和Ta/Nb取代的CaCuTiO陶瓷晶界的巨介电常数和电学性能的影响
Molecules. 2021 May 30;26(11):3294. doi: 10.3390/molecules26113294.