Electrical properties of Sb2O3-modified BiScO3–PbTiO3-based piezoelectric ceramics. Issue 23 (2nd April 2020)

• Record Type: Journal Article
• Authors: Xue, Long; Wei, Qian; Wang, Zujian; Yang, Xiaoming; Long, Xifa; He, Chao
• Is Part Of: RSC advances. Volume 10:Issue 23(2020)
• Page Start: 13460
• Page End: 13469
• Publication Date: 2020-04-02
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d0ra00745e
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Compared with pure Pb-based perovskite ferroelectric materials, BiMeO3 –PbTiO3 (Me = Sc 3+, In 3+, and Yb 3+ ) systems have remarkable advantages in their Curie temperatures. Abstract : Compared with pure Pb-based perovskite ferroelectric materials, BiMeO3 –PbTiO3 (Me = Sc 3+, In 3+, and Yb 3+ ) systems have remarkable advantages in their Curie temperatures. As a member of this group, the BiScO3 –PbTiO3 (BS–PT) solid solution has drawn considerable attention from scientists for its high Curie temperature and excellent piezoelectric coefficient. However, BS–PT ceramics still have some shortcomings, such as high dielectric loss and low mechanical quality factor, which make them unsuitable for high-temperature applications. Herein, we report the effect of the addition of complex ions on the electrical properties of BS–PT ceramics. Sb2 O3 -doped 0.36BiScO3 –0.64PbTi0.97 Fe0.03 O3 + 1 mol% MnO2 (BS–PTFMn + x % Sb2 O3 ) ceramics were fabricated and their electrical properties were studied. BS–PTFMn + 0.75% Sb2 O3 had an optimal piezoelectric coefficient, exhibiting which indicates that Sb2 O3 doping can improve the piezoelectric properties of the BS–PT ceramics, exhibiting a "soft" effect of Sb2 O3 doping. In addition, the thermal depolarization temperature ( T d ) of BS–PTFMn + 0.75% Sb2 O3 ceramics remained above 300 °C, such as 325 °C for BS–PTFMn + 0.75% Sb2 O3 . It was concluded that the piezoelectric properties of BS–PT ceramics were enhanced by the addition of Sb2 O3 .