Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 8, Issue 23, Pages 7650-7657Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0tc01699c
Keywords
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Funding
- National Natural Science Foundation of China [51767010]
- Science AMP
- Technology Key Research Project of Jiangxi Provincial Education Department [GJJ170760]
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Antiferroelectric NaNbO3(NN) is chosen to modify a compositionally optimized BNT-based relaxor ferroelectric ceramic, (Ba0.3Sr0.7)(0.35)(Bi0.5Na0.5)(0.65)TiO3(BSBNT), having the formula (1 -x)BSBNT-xNN, in whichx= 0, 0.02, 0.04, 0.06, 0.08, and 0.10. All dense ceramics are indexed to a pure pseudocubic phase and show strong relaxor characteristics. For the 0.94BSBNT-0.06NN ceramic, a high recoverable energy density ofW(rec)= 1.25 J cm(-3)is obtained at room temperature due to an optimization of the polarization behavior. The temperature dependentP-Ehysteresis loop measurement and the fast charge-discharge test under underdamped and overdamped circuit conditions both demonstrate its relatively good temperature stability of energy storage properties. Together with excellent cycling reliability up to 10(5)cycles, the 0.94BSBNT-0.06NN ceramic has much potential for solid state compact pulsed power capacitors.
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