共 15 条
SPS prepared NN-24SBT lead-free relaxor-antiferroelectric ceramics with ultrahigh energy-storage density and efficiency
被引:28
作者:
Tan, Hua
[1
,3
]
Yan, Zilin
[2
]
Chen, Sheng-Gui
[4
]
Samart, Chanatip
[5
]
Takesue, Naohisa
[6
]
Salamon, David
[7
]
Liu, Yang
[1
,3
]
Zhang, Haibo
[1
,3
,8
]
机构:
[1] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
[2] Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China
[3] Guangdong HUST Ind Technol Res Inst, Dongguan 523808, Peoples R China
[4] Dongguan Univ Technol, Sch Mech Engn, Dongguan 523808, Peoples R China
[5] Thammasat Univ, Fac Sci & Technol, Dept Chem, Pathum Thani 12120, Thailand
[6] Fukuoka Univ, Fac Sci, Fukuoka 8140180, Japan
[7] Brno Univ Technol, Cent European Inst Technol CEITEC, Brno 61200, Czech Republic
[8] Cent China Normal Univ, Shenzhen Res Inst, Shenzhen 518000, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Spark Plasma Sintering;
Dielectric ceramics;
Energy storage;
Antiferroelectric;
PHASE-TRANSITION;
D O I:
10.1016/j.scriptamat.2021.114428
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Dielectric ceramics are of great potential to be applied in electronic systems due to their fast discharge speed and temperature tolerance. However, the low energy storage density and efficiency highly restricts the applications of dielectric ceramics. Here, we propose a strategy of fine grain and highly densified relaxor-antiferroelectric (RE-AFE) ceramics to both increase the energy storage density and efficiency. We fabricated NaNbO3 based relaxor-antiferroelectric (RE-AFE) ceramics by Spark Plasma Sintering (SPS) and obtained an ultra-high recoverable energy storage density of 12.2 J/cm(3) and satisfied efficiency of 88%. The present research offers a route for designing dielectric ceramics with enhanced energy storage density and efficiency, which is significant to the application of dielectric ceramics. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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