人工晶体学报2025，Vol.54Issue(6)：1061-1067,7.DOI:10.16553/j.cnki.issn1000-985x.2024.0258
Co掺杂Na0.5Bi4.5Ti4O15铋层状无铅压电陶瓷制备及电学性能研究
Preparation and Electrical Properties of Co Doped Na0.5Bi4.5Ti4O15 Bismuth-Layered Lead-Free Piezoelectric Ceramics
张飞洋 1闫锋 1娄岳 1李波江 1李杰1
作者信息
- 1. 中国电子科技集团公司第四十六研究所,天津 300220
- 折叠
摘要
Abstract
High Curie temperature bismuth-layered lead-free piezoelectric ceramics based on Na0.5Bi4.5Ti4-xCoxO15(x=0,0.025,0.050,0.075)were prepared by conventional solid state reaction method.The crystal structure,fracture morphology,oxygen vacancy status,as well as the dielectric,piezoelectric and ferroelectric properties of the samples were characterized by XRD,SEM,EDS,XPS and related electrical parameter testing systems.The influence of different doping contents of Co on the ceramic properties was investigated.The results show that when the doping content of Co is 0.050,the sample exhibits a single and uniform phase composition,with a lamellar structure and high densification.The piezoelectric constant is 34.7 pC/N.The dielectric loss is only 0.30%and the Curie temperature is 672℃.The high temperature resistivity at 500℃is 1.62×107 Ω•cm.Meanwhile,the sample demonstrates excellent temperature stability,suggesting that the doped Na0.5Bi4.5Ti3.95Co0.05O15 ceramic has potential market applications value in high-temperature and high-frequency fields.关键词
Co掺杂/铋层状无铅压电陶瓷/固相反应法/压电性能/热稳定性/电学性能Key words
Co doping/bismuth-layered lead-free piezoelectric ceramics/solid state reaction method/piezoelectric property/thermal stability/electrical property分类
化学化工引用本文复制引用
张飞洋,闫锋,娄岳,李波江,李杰..Co掺杂Na0.5Bi4.5Ti4O15铋层状无铅压电陶瓷制备及电学性能研究[J].人工晶体学报,2025,54(6):1061-1067,7.
