Core-shell structure and domain engineering in Bi0.5Na0.5TiO3-based ceramics with enhanced dielectric and energy storage performance
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作者:
Xue, Guoliang
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Cent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
Xue, Guoliang
[1
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Zhou, Xuefan
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Cent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
Zhou, Xuefan
[1
]
Su, Yingchun
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Cent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
Su, Yingchun
[1
]
Tang, Lin
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Cent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
Tang, Lin
[1
]
Zou, Jinzhu
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Cent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
Zou, Jinzhu
[1
]
Zhang, Dou
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Cent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
Zhang, Dou
[1
]
机构:
[1] Cent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
Bi0.5Na0.5TiO3;
KTaO3;
Li2CO3;
Core-shell microstructure;
Energy storage;
Dielectric temperature stability;
TEMPERATURE;
BATIO3;
MICROSTRUCTURE;
PIEZOCERAMICS;
DENSITY;
D O I:
10.1016/j.jmat.2023.02.008
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Core-shell structured Bi0.5Na0.5TiO3-KTaO3 + x% (in mass) Li2CO3 ceramics were fabricated in this study. Increasing x from 0 to 2 leads to the decrease of sintering temperature from 1 175 degrees C to 1 020 degrees C. The limited diffusion of Ta5+ results in chemical heterogeneities and core-shell microstructures. The Ta5+depleted cores show the nanodomains (-10 nm), while the Ta5+-rich shells display the polar nanoregions (1-2 nm). From x = 0 to 1, the appearance of cores with nanodomains contributes to the increase of dielectric constant and maximum polarization, while the further addition of Li2CO3 suppresses the dielectric and polarization responses due to the reduced grain sizes and polarization coupling. The enhanced dielectric relaxation and existence of core-shell microstructure with different polarization levels help to optimize the dielectric temperature stability. The x = 2 ceramics exhibit a stable high dielectric constant -1 400 over a wide temperature range of 20-520 degrees C. More encouragingly, the ultrafine grain size and core-shell microstructure in the x = 2 ceramics greatly benefit the improvement of breakdown strength. Combined with the delayed polarization saturation and high ergodicity, a high recoverable energy density of -5.07 J/cm3 is obtained under 44 kV/mm, with a high efficiency of -85.17%. (c) 2023 The Authors. Published by Elsevier B.V. on behalf of The Chinese Ceramic Society. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
机构:
Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Shen, Yihao
Wu, Lukang
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Wu, Lukang
Zhao, Jinghao
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Zhao, Jinghao
Liu, Jinjun
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Liu, Jinjun
Tang, Luomeng
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Tang, Luomeng
Chen, Xiqi
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Chen, Xiqi
Li, Huanhuan
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Li, Huanhuan
Su, Zhen
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Jiaxing Univ, China Australia Inst Adv Mat & Mfg, Jiaxing 34001, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Su, Zhen
Zhang, Yang
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Chaohu Univ, Sch Chem & Meterials Engn, Hefei 238000, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Zhang, Yang
Zhai, Jiwei
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Tongji Univ, Sch Mat Sci & Engn, 4800 Caoan Rd, Shanghai 201804, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Zhai, Jiwei
Pan, Zhongbin
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
机构:
Xi An Jiao Tong Univ, Minist Educ, Key Lab, Elect Mat Res Lab, Xian 710049, Peoples R China
Xi An Jiao Tong Univ, Int Ctr Dielect Res, Xian 710049, Peoples R ChinaNatl Univ Singapore, Dept Mech Engn, Singapore 117575, Singapore
机构:
Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R ChinaNanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
Jiang, Shunshun
Zhang, Ji
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Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R ChinaNanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
Zhang, Ji
Luo, Huajie
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Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R ChinaNanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
Luo, Huajie
Liu, Lisha
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Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R ChinaNanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
Liu, Lisha
Li, Jinglei
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Xi An Jiao Tong Univ, Elect Mat Res Lab, State Key Lab Mech Behav Mat, Key Lab,Educ Minist, Xian 710049, Peoples R China
Xi An Jiao Tong Univ, Sch Elect Sci & Engn, Xian 710049, Peoples R ChinaNanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
Li, Jinglei
Karpinsky, Dmitry V.
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NAS Belarus, Sci Pract Mat Res Ctr, Minsk 220072, BELARUSNanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
Karpinsky, Dmitry V.
Wang, Jing
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Nanjing Univ Aeronaut & Astronaut, Coll Aerosp Engn, State Key Lab Mech & Control Aerosp Struct, Nanjing 210016, Peoples R ChinaNanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
Wang, Jing
Wang, Yaojin
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Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R ChinaNanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
机构:
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, ChinaSchool of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
Li, Xiao-Juan
Xi, Zeng-Zhe
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机构:
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, ChinaSchool of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
Xi, Zeng-Zhe
Long, Wei
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机构:
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, ChinaSchool of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
Long, Wei
Fang, Pin-Yang
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School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, ChinaSchool of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China