Effect of Bi3+ and Ti4+ substitution on PbNb2O6 piezoelectric ceramics. Issue 23 (1st December 2022)

• Record Type: Journal Article
• Authors: Zhao, Xueming; Liu, Cheng; Zhang, Dainan; Huang, Da; Liu, Kui; Zhang, Huaiwu
• Is Part Of: Ceramics international. Volume 48:Issue 23(2022)Part A
• Page Start: 35461
• Page End: 35466
• Publication Date: 2022-12-01
• Subjects: Tungsten bronze structure -- PbNb2O6 -- Piezoelectric -- Ceramics; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2022.08.149
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In this study, Pb1-2 x Bi2 x (Nb1- x Ti x )2 O6 (PBNT x, x = 0.02–0.08) ceramics with tungsten bronze structure were prepared via the solid-state reaction method. Single orthorhombic ferroelectric phase was detected for all PBNT x ceramics. SEM results indicated fully densified morphology for the samples of x ≥ 0.06. Optimal piezoelectric performance was obtained at the sample of x = 0.08, whose piezoelectric constant ( d 33 ) reached to 92 pC/N and Curie temperature ( T c ) was up to 593 °C. A notably high electromechanical coupling coefficient ( k p ) greater than 0.6 was also obtained in this system. The improved piezoelectric performance indicated that Bi 3+ and Ti 4+ modified PbNb2 O6 system is promising for ultrasonic defect detection and transducer applications at high temperatures.