High energy storage density over a broad temperature range in sodium bismuth titanate-based lead-free ceramics.

ABSTRACT: A series of (1-x)Bi_0.48La_0.02Na_0.48Li_0.02Ti_0.98Zr_0.02O₃-xNa_0.73Bi_0.09NbO₃ ((1-x)LLBNTZ-xNBN) (x = 0-0.14) ceramics were designed and fabricated using the conventional solid-state sintering method. The phase structure, microstructure, dielectric, ferroelectric and energy storage properties of the ceramics were systematically investigated. The results indicate that the addition of Na_0.73Bi_0.09NbO₃ (NBN) could decrease the remnant polarization (P _r ) and improve the temperature stability of dielectric constant obviously. The working temperature range satisfying TCC _150 °C ≤±15% of this work spans over 400 °C with the co

SUBMITTER: Yang H 

PROVIDER: S-EPMC5562768 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature