J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (12): 2371-2374.DOI: 10.1016/j.jmst.2018.06.008
• Orginal Article • Previous Articles Next Articles
Jing Shia*(), Xiao Liub, Wenchao Tiana
Received:
2017-07-06
Revised:
2017-12-27
Accepted:
2018-04-28
Online:
2018-12-20
Published:
2018-11-15
Contact:
Shi Jing
Jing Shi, Xiao Liu, Wenchao Tian. High energy-storage properties of Bi0.5Na0.5TiO3-BaTiO3-SrTi0.875Nb0.1O3 lead-free relaxor ferroelectrics[J]. J. Mater. Sci. Technol., 2018, 34(12): 2371-2374.
Fig. 1. (a) Comparison of XRD patterns for virgin and ex-situ poled BNBT and BNBT-0.02STN ceramics, (b) locally magnified (111) and (200) diffraction peaks.
Fig. 3. (a) Bipolar polarization hysteresis loops and schematic diagram of energy-storage parameters calculation at 85 kV/cm, (b) the unipolar polarization hysteresis loops under different electric fields at room temperature, (c) energy-storage density Wrec varying with the magnitude of the applied electric field of BNBT-0.2STN.
Compounds | Wrec (J/cm3) | η (%) | E (kV/cm) | Ref. |
---|---|---|---|---|
BNT-ST-NN | 0.73 | 55% | 70 | [ |
BNT-BCZT-MgO | 1.37 | 61.43% | 179.1 | [ |
BNT-BT-NBN | 1.4 | 66.3% | 142 | [ |
BNT-BT-BTZ | 0.952 | 79% | 80 | [ |
BNT-BT-KN | 0.89 | 73% | 100 | [ |
BNTBT-SZ-NN | 0.95 | 66% | 110 | [ |
BNBT-STN | 1.17 | 91% | 105 | This work |
Table 1 Comparison of ferroelectric and energy storage properties of several lead-free ceramics.
Compounds | Wrec (J/cm3) | η (%) | E (kV/cm) | Ref. |
---|---|---|---|---|
BNT-ST-NN | 0.73 | 55% | 70 | [ |
BNT-BCZT-MgO | 1.37 | 61.43% | 179.1 | [ |
BNT-BT-NBN | 1.4 | 66.3% | 142 | [ |
BNT-BT-BTZ | 0.952 | 79% | 80 | [ |
BNT-BT-KN | 0.89 | 73% | 100 | [ |
BNTBT-SZ-NN | 0.95 | 66% | 110 | [ |
BNBT-STN | 1.17 | 91% | 105 | This work |
Fig. 4. (a) The calculated energy-storage densities Wrec and efficiencies η, (b) the unipolar polarization hysteresis loops under 85 kV/cm at different temperature from 30 °C to 150 °C of BNBT-0.2STN, (c) the fatigue properties of Pmax, Pr and bipolar polarization hysteresis loops under 75 kV/cm at room temperature of BNBT-0.2STN.
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