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Barium titanate-based relaxor antiferroelectric ceramic material with high energy storage density and high power density and preparation method of barium titanate-based relaxor antiferroelectric ceramic material
The invention belongs to the technical field of dielectric ceramic material preparation, and particularly relates to a barium titanate-based relaxor antiferroelectric ceramic material with high energy storage density and high power density and a preparation method thereof, the chemical formula of the material is Ba1.003 (Ti1-xMex) O3.003-x, Me is one of Mg, Li and Cu, x is mole fraction, 0.01 < = x < = 0.07, the material is prepared by a solid phase method, and through a vacancy defect mechanism, the energy storage density and the power density of the barium titanate-based relaxor antiferroelectric ceramic material are improved. Isovalent ions are introduced to the Ti site of BaTiO3 to form a relaxor antiferroelectric uniform solid solution, so that the breakdown field strength of the ceramic material is improved, the remanent polarization is reduced, the energy storage density and efficiency of the dielectric ceramic material are improved, and the dielectric ceramic material is simple in composition, free of volatile substances and low in cost. The method is suitable for preparation and application of ceramic capacitors, especially dielectric capacitors in pulse systems.
本发明属于介电陶瓷材料制备技术领域，具体涉及一种具有高储能密度和高功率密度的钛酸钡基弛豫反铁电陶瓷材料及其制备方法，材料的化学式为Ba1.003(Ti1‑xMex)O3.003‑x，其中，Me为Mg、Li、Cu中的一种，x为摩尔分数，0.01≤x≤0.07，采用固相法制备，通过空位缺陷机制，引入异价离子到BaTiO3的Ti位形成具有弛豫反铁电的均匀固溶体，用以提高陶瓷材料击穿场强和降低剩余极化强度，提升了介电陶瓷材料的储能密度和效率，且本发明组成简单，不含挥发性物质，适用于陶瓷电容器尤其是脉冲系统中介质电容器的制备和应用。
Barium titanate-based relaxor antiferroelectric ceramic material with high energy storage density and high power density and preparation method of barium titanate-based relaxor antiferroelectric ceramic material
The invention belongs to the technical field of dielectric ceramic material preparation, and particularly relates to a barium titanate-based relaxor antiferroelectric ceramic material with high energy storage density and high power density and a preparation method thereof, the chemical formula of the material is Ba1.003 (Ti1-xMex) O3.003-x, Me is one of Mg, Li and Cu, x is mole fraction, 0.01 < = x < = 0.07, the material is prepared by a solid phase method, and through a vacancy defect mechanism, the energy storage density and the power density of the barium titanate-based relaxor antiferroelectric ceramic material are improved. Isovalent ions are introduced to the Ti site of BaTiO3 to form a relaxor antiferroelectric uniform solid solution, so that the breakdown field strength of the ceramic material is improved, the remanent polarization is reduced, the energy storage density and efficiency of the dielectric ceramic material are improved, and the dielectric ceramic material is simple in composition, free of volatile substances and low in cost. The method is suitable for preparation and application of ceramic capacitors, especially dielectric capacitors in pulse systems.
本发明属于介电陶瓷材料制备技术领域，具体涉及一种具有高储能密度和高功率密度的钛酸钡基弛豫反铁电陶瓷材料及其制备方法，材料的化学式为Ba1.003(Ti1‑xMex)O3.003‑x，其中，Me为Mg、Li、Cu中的一种，x为摩尔分数，0.01≤x≤0.07，采用固相法制备，通过空位缺陷机制，引入异价离子到BaTiO3的Ti位形成具有弛豫反铁电的均匀固溶体，用以提高陶瓷材料击穿场强和降低剩余极化强度，提升了介电陶瓷材料的储能密度和效率，且本发明组成简单，不含挥发性物质，适用于陶瓷电容器尤其是脉冲系统中介质电容器的制备和应用。
Barium titanate-based relaxor antiferroelectric ceramic material with high energy storage density and high power density and preparation method of barium titanate-based relaxor antiferroelectric ceramic material
具有高储能密度和高功率密度的钛酸钡基弛豫反铁电陶瓷材料及其制备方法
LI ZHIWEI (Autor:in) / CHEN ZHIHUI (Autor:in) / REN YURONG (Autor:in) / QIU JIANHUA (Autor:in) / BIAN ZHENGXIANG (Autor:in)
29.12.2023
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2024