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High-energy-storage bismuth ferrite-based ceramic material with girdled ferroelectric hysteresis loop and preparation method of high-energy-storage bismuth ferrite-based ceramic material
The invention discloses a high-energy-storage bismuth ferrite-based ceramic material with a girdled ferroelectric hysteresis loop obtained through multi-dimensional regulation and a preparation method thereof, the chemical general formula of the ceramic material is (0.6-x) BiFeO3-0. 4SrTiO3-xNaNbO3, x represents molar percentage, x is more than 0 and less than or equal to 0.10, and x is more than 0 and less than or equal to 0.10. The invention further discloses a preparation method of the high-energy-storage bismuth ferrite-based ceramic material with the girdled ferroelectric hysteresis loop. The preparation method comprises the following steps: mixing the raw materials according to the stoichiometric ratio of the raw materials in the chemical general formula, and carrying out solid-phase sintering processes such as batching, ball milling, drying, sieving, isostatic pressing, densification sintering and the like. Compared with the prior art, the lead-based anti-ferroelectric ceramic material has the advantages that the lead-based anti-ferroelectric ceramic material has the advantages of high saturation polarization Pmax and low remanent polarization Pr, excellent energy storage density and efficiency are obtained, the preparation process is simple, large-scale production is easy, the material cost is low, and the method is green and environment-friendly, and a new method is provided for preparing the lead-based anti-ferroelectric ceramic material for replacing high energy storage.
本发明公开了一种通过多维度调控获得具有束腰状电滞回线的高储能铁酸铋基陶瓷材料及其制备方法，该陶瓷材料的化学通式为：(0.6‑x)BiFeO3‑0.4SrTiO3‑xNaNbO3，其中x表示摩尔百分比，0＜x≤0.10；其制备方法包括：按照化学通式中各原料的化学计量比将原料混合，经过配料、球磨、烘干、过筛、等静压成型、致密化烧结等固相烧结工艺，本发明提供的陶瓷材料具有束腰状的电滞回线，表现出类反铁电特性(高的饱和极化强度Pmax和低的剩余极化强度Pr)，获得优异的储能密度和效率，并且本发明的制备工艺简单，易于大规模生产，材料成本低，绿色环保，为制备取代高储能的铅基类反铁电陶瓷材料提供了新方法。
High-energy-storage bismuth ferrite-based ceramic material with girdled ferroelectric hysteresis loop and preparation method of high-energy-storage bismuth ferrite-based ceramic material
The invention discloses a high-energy-storage bismuth ferrite-based ceramic material with a girdled ferroelectric hysteresis loop obtained through multi-dimensional regulation and a preparation method thereof, the chemical general formula of the ceramic material is (0.6-x) BiFeO3-0. 4SrTiO3-xNaNbO3, x represents molar percentage, x is more than 0 and less than or equal to 0.10, and x is more than 0 and less than or equal to 0.10. The invention further discloses a preparation method of the high-energy-storage bismuth ferrite-based ceramic material with the girdled ferroelectric hysteresis loop. The preparation method comprises the following steps: mixing the raw materials according to the stoichiometric ratio of the raw materials in the chemical general formula, and carrying out solid-phase sintering processes such as batching, ball milling, drying, sieving, isostatic pressing, densification sintering and the like. Compared with the prior art, the lead-based anti-ferroelectric ceramic material has the advantages that the lead-based anti-ferroelectric ceramic material has the advantages of high saturation polarization Pmax and low remanent polarization Pr, excellent energy storage density and efficiency are obtained, the preparation process is simple, large-scale production is easy, the material cost is low, and the method is green and environment-friendly, and a new method is provided for preparing the lead-based anti-ferroelectric ceramic material for replacing high energy storage.
本发明公开了一种通过多维度调控获得具有束腰状电滞回线的高储能铁酸铋基陶瓷材料及其制备方法，该陶瓷材料的化学通式为：(0.6‑x)BiFeO3‑0.4SrTiO3‑xNaNbO3，其中x表示摩尔百分比，0＜x≤0.10；其制备方法包括：按照化学通式中各原料的化学计量比将原料混合，经过配料、球磨、烘干、过筛、等静压成型、致密化烧结等固相烧结工艺，本发明提供的陶瓷材料具有束腰状的电滞回线，表现出类反铁电特性(高的饱和极化强度Pmax和低的剩余极化强度Pr)，获得优异的储能密度和效率，并且本发明的制备工艺简单，易于大规模生产，材料成本低，绿色环保，为制备取代高储能的铅基类反铁电陶瓷材料提供了新方法。
High-energy-storage bismuth ferrite-based ceramic material with girdled ferroelectric hysteresis loop and preparation method of high-energy-storage bismuth ferrite-based ceramic material
一种具有束腰状电滞回线的高储能铁酸铋基陶瓷材料及其制备方法
PU YONGPING (author) / ZHANG JINBO (author) / ZHANG LEI (author) / PAN QIAO (author)
2023-10-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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