Effect of Bi2O3 additive on dielectric properties of BaTiO3-based ceramics for improving energy density. (17th November 2017)

• Record Type: Journal Article
• Authors: Wei, Meng; Zhang, Jihua; Wu, Kaituo; Chen, Hongwei; Yang, Chuanren
• Is Part Of: Advances in applied ceramics. Volume 116:Number 8(2017)
• Page Start: 439
• Page End: 444
• Publication Date: 2017-11-17
• Subjects: Co-doping -- dielectric properties -- energy density -- nonlinearity -- capacitors; Ceramics -- Periodicals; 620.1405
• DOI: 10.1080/17436753.2017.1352109
• Languages: English
• ISSNs: 1743-6753

Abstract

ABSTRACT: In this paper, the effect of Bi2 O3 additive on dielectric properties of BaTiO3 -based ceramics was investigated for improving energy density. When x = 0.05, the created defect dipoles in BT–BN system achieved a balance in the system with the minimum value of P r . Because of the created dipole, the long-range dipolar interaction was interrupted and the weak couplings of the defect dipoles were formed. Energy storage density achieved the maximum values of 0.68 J cm −3 with energy efficiency 91.5% in 0.95BaTiO3 –Bi0.05 Nb0.05 O4 . The nonlinearity was suppressed obviously with low P r, which was good for in lead-free relaxor materials for the energy storage applications.