首页|Preeminent energy storage properties and superior stability of(Ba(1-x)Bix)(Ti(1-x)Mg2x/3Tax/3)O3 relaxor ferroelectric ceramics via elongated rod-shaped grains and domain structural regulation

Preeminent energy storage properties and superior stability of(Ba(1-x)Bix)(Ti(1-x)Mg2x/3Tax/3)O3 relaxor ferroelectric ceramics via elongated rod-shaped grains and domain structural regulation

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(Ba(1-x)Bix)(Ti(1-x)Mg2x/3Tax/3)O3(BBTMT-x,x=0.075,0.1,0.125,and 0.15)ceramics were manufactured via a solid-phase reaction method.The pseudo-cubic BaTiO3(BT)as the primary phase and Ba4MgTi11O27 as the secondary phase were detected in BBTMT-x ceramics.The elongated rod-shaped grains therein be-came numerous as x increased.The introduction of Bi/Mg/Ta(BMT)elements transformed BT ceramics from ferroelectrics to relaxor ferroelectrics and induced the formation of short-range order polar nanore-gions(PNRs),which were beneficial for the preeminent energy storage properties(ESPs).The highest ESPs(a giant recoverable energy-storage density Wrec of 5.97 J cm-3 with a high-efficiency η of 87.4％)were achieved in BBTMT-0.1 ceramics at 710 kV cm-1.BBTMT-0.1 ceramics also possessed excellent fre-quency(1-500 Hz),temperature(30-150 ℃),and fatigue(cycle number of 1-100,000)stabilities.Finite element simulations(FES)demonstrated that elongated rod-shaped grains had stronger obstacles to the development of electrical branches,which was beneficial to improving the comprehensive ESPs.

CeramicsRelaxor ferroelectricsEnergy storagePolar nanoregionsStability

Ming Yin、Ying Zhang、Hai-Rui Bai、Peng Li、Yu-Chao Li、Wei-Fang Han、Ji-Gong Hao、Wei Li、Chun-Ming Wang、Peng Fu

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School of Materials Science and Engineering,Liaocheng University,Liaocheng 252059,China

Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing,Yantai 264006,China

School of Physics,Shandong University,Jinan 250100,China

Natural Science Foundation of Shandong Province of ChinaNatural Science Foundation of Shandong Province of ChinaNatural Science Foundation of Shandong Province of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaPostdoctoral Science Foundation of ChinaOpening Project of Key Laboratory of Inorganic Functional Materials and Devices,Chinese Academy of Sciences

ZR2020ME035ZR2020QE043ZR2020QE0445187216652102132521770202017M622196KLIFMD201705

2024

10.1016/j.jmst.2023.10.036

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.184(17)
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