掺入sr0.8 bi0.1 γ0.1 ti0.8 zr0.2 2o2.95的0.94Bi0.5Na0.5TiO3-0.06BaTiO3陶瓷的高能量存储性能

IF 3.3 3区物理与天体物理 Q2 PHYSICS, CONDENSED MATTER

Superlattices and Microstructures Pub Date : 2023-01-01 DOI:10.20517/microstructures.2023.04

Cheng Wang, X. Lou

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引用次数: 2

摘要

具有高能量存储密度的陶瓷在各个行业都有很高的需求。为此，采用常规固相反应法制备无铅弛豫铁电陶瓷，其组成为(1-x)[0.94Bi0.5Na0.5TiO3-0.06BaTiO3]- xsr0.8 bi γ0.1 ti0.8 zr0.2 20.95，简称BNBT-xSBTZ。在BNBT陶瓷中掺入SBTZ可显著改善其弛豫性能。其中，0.91BNBT-0.09SBTZ陶瓷的击穿电场高达230 kV/cm，可回收储能密度(Wr)为2.68 J/cm3，储能效率(η)为74.4%。此外，该样品表现出显著的温度稳定性和抗疲劳性，从室温到140°C, Wr仅降低11%，105次电循环后Wr降低13.3%。因此，0.91BNBT-0.09SBTZ陶瓷是一种很有前途的适合储能介质电容器的介电材料

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High energy storage properties of 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 ceramics by incorporating Sr0.8Bi0.1γ0.1Ti0.8Zr0.2O2.95

eramics with high-energy storage density are in high demand across various industries. In this regard, lead-free relaxor ferroelectric ceramics were synthesized using the conventional solid-state reaction method with the composition (1-x)[0.94Bi0.5Na0.5TiO3-0.06BaTiO3]-xSr0.8Biγ0.1Ti0.8Zr0.2O0.95, abbreviated as BNBT-xSBTZ. The incorporation of SBTZ in BNBT ceramics significantly improved their relaxation properties. Specifically, the 0.91BNBT-0.09SBTZ ceramics displayed a breakdown electric field of up to 230 kV/cm, with a recoverable energy storage density (Wr) of 2.68 J/cm3 and an energy storage efficiency (η) of 74.4%. Additionally, this sample demonstrated remarkable temperature stability and fatigue resistance, with only an 11% decrease in Wr observed from room temperature to 140 °C and a 13.3% reduction in Wr after 105 electrical cycles. Therefore, the 0.91BNBT-0.09SBTZ ceramic is a promising dielectric material suitable for energy-storage dielectric capacitors

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来源期刊

Superlattices and Microstructures 物理-物理：凝聚态物理

CiteScore

6.10

自引率

3.20%

发文量

审稿时长

2.8 months

期刊介绍： Micro and Nanostructures is a journal disseminating the science and technology of micro-structures and nano-structures in materials and their devices, including individual and collective use of semiconductors, metals and insulators for the exploitation of their unique properties. The journal hosts papers dealing with fundamental and applied experimental research as well as theoretical studies. Fields of interest, including emerging ones, cover: • Novel micro and nanostructures • Nanomaterials (nanowires, nanodots, 2D materials ) and devices • Synthetic heterostructures • Plasmonics • Micro and nano-defects in materials (semiconductor, metal and insulators) • Surfaces and interfaces of thin films In addition to Research Papers, the journal aims at publishing Topical Reviews providing insights into rapidly evolving or more mature fields. Written by leading researchers in their respective fields, those articles are commissioned by the Editorial Board. Formerly known as Superlattices and Microstructures, with a 2021 IF of 3.22 and 2021 CiteScore of 5.4