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Large energy storage density in BiFeO3-BaTiO3-AgNbO3 lead-free relaxor ceramics

Sun, Haonan (författare)
Frontier Institute of Science and Technology, and State Key Laboratory of Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, 710049, China
Wang, Xiangjian (författare)
Luleå tekniska universitet,Materialvetenskap
Sun, Qinzao (författare)
State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
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Zhang, Xiaoxiao (författare)
School of Science, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Frontier Institute of Science and Technology, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
Ma, Zhuang (författare)
Frontier Institute of Science and Technology, and State Key Laboratory of Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, 710049, China
Guo, Mengyao (författare)
Frontier Institute of Science and Technology, and State Key Laboratory of Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, 710049, China
Sun, Buwei (författare)
Frontier Institute of Science and Technology, and State Key Laboratory of Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, 710049, China
Zhu, Xiaopei (författare)
Frontier Institute of Science and Technology, and State Key Laboratory of Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, 710049, China
Liu, Qida (författare)
State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an, 710049, China
Lou, Xiaojie (författare)
Frontier Institute of Science and Technology, and State Key Laboratory of Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, 710049, China
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 (creator_code:org_t)
Elsevier, 2020
2020
Engelska.
Ingår i: Journal of the European Ceramic Society. - : Elsevier. - 0955-2219 .- 1873-619X. ; 40:8, s. 2929-2935
Relaterad länk:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Lead-free (0.70-x)BiFeO3-0.30BaTiO3-xAgNbO3+5‰mol CuO (abbreviated as BF-BT-xAN) ceramics were fabricated using a modified thermal quenching technique. BF-BT-xAN ceramics are of a perovskite structure with morphotropic phase boundary (MPB) and show strong relaxor properties. Remarkably, the high recoverable energy storage density of 2.11 J/cm3 is obtained for BF-BT-xAN with x = 0.14. For the x = 0.14 ceramics, its energy storage efficiency is as high as 84 % at relative low field of 195 kV/cm, together with an outstanding thermal stability in a broad temperature range from 25 °C to 150 °C. In addition, this ceramic maintains superior energy storage performance even after 8 × 104 electrical cycles due to its high densification after doping Ag2O and Nb2O5. The result suggests that lead-free BF-BT-xAN ceramics may be promising candidate for dielectric energy storage application.

Ämnesord

NATURVETENSKAP  -- Fysik -- Annan fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Other Physics Topics (hsv//eng)

Nyckelord

Energy storage
Bismuth ferrite
Lead-free ceramics
Relaxor
Ferroelectrics
Thermal stability
Applied Physics
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