硅酸盐通报2024，Vol.43Issue(11)：4201-4207,7.
两步烧结法制备BiFeO3-(Ba0.85Ca0.15)(Zr0.10Ti0.90)O3陶瓷的性能研究
Properties of BiFeO3-(Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 Ceramics Prepared by Two-Step Sintering Method
摘要
Abstract
The ferroelectric property of ceramics can be significantly improved by adding(Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 into BiFeO3.However,the sintering temperature of ceramics prepared by traditional solid-state method is high,resulting in increasing internal defects of ceramic materials.In this study,0.7BiFeO3-0.3(Ba0.85 Ca0.15)(Zr0.10 Ti0.90)O3-0.15％(mass fraction)MnCO3(abbreviated as 0.7BF-0.3BCZT)ceramics were sintered using the two-step sintering method based on the short-term sintering at high temperature(T1)and long-term holding at low temperature(T2).The effect of T1 temperature on the phase composition,microstructure,ferroelectric and dielectric properties of as-prepared ceramics was investigated.The results reveal that the phase structures of as-prepared ceramics are coexistence of rhombohedral and pseudo-cubic phases with no evidence of secondary phase.With the increase of T1 sintering temperature,the bulk density,dielectric constant and remanent polarization of ceramics increase first and then decrease.Consequently,the ceramics prepared at T1=1 040 ℃ demonstrate excellent dielectric and ferroelectric properties.The maximum dielectric constant and remanent polarization are 6 706.10 and 8.53 μC/cm2,respectively.关键词
BiFeO3/(Ba0.85Ca0.15)(Zr0.10Ti0.90)O3/铁电陶瓷/两步烧结法/介电常数/极化强度Key words
BiFeO3/(Ba0.85Ca0.15)(Zr0.10Ti0.90)O3/ferroelectric ceramics/two-step sintering method/dielectric constant/polarization分类
化学化工引用本文复制引用
崔宇晗,王维毅,王挺,张景翔,刘旭罿,黄晨,卢俊铭..两步烧结法制备BiFeO3-(Ba0.85Ca0.15)(Zr0.10Ti0.90)O3陶瓷的性能研究[J].硅酸盐通报,2024,43(11):4201-4207,7.基金项目
广东省教育厅高等学校项目(2021KQNCX095) （2021KQNCX095）
广东省基础与应用基础研究基金(2022A1515140002) （2022A1515140002）
