We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Improved energy storage properties of La0.33NbO3 modified 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 ceramic system.
- Authors
Ullah, Amjad; Yao, Zhonghua; Liu, Hanxing; Hao, Hua; Manan, Abdul; Ullah, Atta; Jan, Abdullah; Cao, Minghe; Ahmad, Safeer; Alresheedi, Faisal
- Abstract
(1−x)[0.94Bi0.5Na0.5TiO3 – 0.06BaTiO3]−xLa0.33NbO3 (x = 0, 0.02, 0.04, 0.06, 0.08, 0.10) (BNBT-LN) bulk lead-free relaxor ferroelectric ceramics were synthesized via solid-state sintering method. Phase, microstructure and energy storage properties were determined. The X-ray diffraction (XRD) revealed a single perovskite phase for compositions of x ≤ 0.02, while the second phase of Bi2Ti2O7 along with the parent phase for x ≥ 0.04. Dense microstructure with a decrease in grain size has been achieved via LN doping. The addition of LN decreased the remnant polarization (Pr), and coercive field (Ec), while increased the difference between the maximum polarization (Pmax) and remnant polarization (Pr). The high energy-storage density of 2.96 J/cm 3 and high recoverable energy density of 1.66 J/cm3 at a breakdown electric field of 214 kV/cm were achieved for the composition of x = 0.02 with good temperature stability satisfying the condition of Δεr /ε r200 °C ≤ ± 15% in a working temperature range of 70 °C to 400 °C. Similarly, a less discharge time of < 4 µs achieved in this study for x = 0.02. These results demonstrate that this material may be a good candidate material for power pulsed applications.
- Subjects
ENERGY storage; LEAD-free ceramics; FERROELECTRIC ceramics; ELECTRIC discharges; ENERGY density; CERAMICS; GRAIN size
- Publication
Applied Physics A: Materials Science & Processing, 2021, Vol 127, Issue 2, p1
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-021-04312-3