A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Silver niobate-based antiferroelectric energy storage ceramic with high energy storage characteristic, and low-temperature sintering method thereof
The invention relates to a silver niobate-based antiferroelectric energy storage ceramic with a high energy storage characteristic and a low-temperature sintering method thereof. The ceramic and the method can effectively solve the problems of low breakdown field strength, complex preparation process and unstable antiferroelectric phase in the prior art. According to a technical scheme in the invention, a component (1-x)AgNbO3-x(Sr<0.7>Bi<0.2>) HfO<3>-0.01BCB is taken as a bais, a traditional solid-phase reaction method is adopted, high-purity Ag<2>O powder, Nb<2>O<5> powder, SrCO<3> powder, Bi<2>O<3> powder and HfO<2> powder are used as matrix materials, and BaCu(B<2>O<7>) prepared from B(OH)<2>. 8H<2>O powder, H<3>BO<3> powder and CuO powder in a molar ratio of 1: 2: 1 is taken as a sintering aid for preparation of the silver niobate-based antiferroelectric energy storage ceramic. According to the invention, the preparation process of the silver niobate-based antiferroelectric energy storage ceramic is simplified on the premise of ensuring high energy storage characteristics, the silver niobate-based antiferroelectric energy storage ceramic with high energy storage density, high energy storage efficiency and good temperature stability is prepared, and the preparation method is an innovation of a novel preparation method of the silver niobate-based antiferroelectric energy storage ceramic.
本发明涉及高储能特性铌酸银基反铁电储能陶瓷及其低温烧结方法，可有效解决现有技术击穿场强低、制备工艺复杂、反铁电相不稳定的问题，其解决的技术方案是，本发明以组分(1‑x)AgNbO3‑x(Sr0.7Bi0.2)HfO3‑0.01BCB为基础，采用传统的固相反应法，将高纯的Ag2O粉体、Nb2O5粉体、SrCO3粉体、Bi2O3粉体和HfO2粉体作为基体材料；以Ba(OH)2·8H2O粉体、H3BO3粉体和CuO粉体按摩尔比1:2:1制备而成的BaCu(B2O7)作为烧结助剂制备而成，本发明在保证高储能特性的前提下，简化铌酸银基反铁电储能陶瓷的制备工艺，制备出高储能密度，高储能效率并具有良好温度稳定性的铌酸银基反铁电储能陶瓷，是铌酸银基反铁电储能陶瓷制备方法上的创新。
Silver niobate-based antiferroelectric energy storage ceramic with high energy storage characteristic, and low-temperature sintering method thereof
The invention relates to a silver niobate-based antiferroelectric energy storage ceramic with a high energy storage characteristic and a low-temperature sintering method thereof. The ceramic and the method can effectively solve the problems of low breakdown field strength, complex preparation process and unstable antiferroelectric phase in the prior art. According to a technical scheme in the invention, a component (1-x)AgNbO3-x(Sr<0.7>Bi<0.2>) HfO<3>-0.01BCB is taken as a bais, a traditional solid-phase reaction method is adopted, high-purity Ag<2>O powder, Nb<2>O<5> powder, SrCO<3> powder, Bi<2>O<3> powder and HfO<2> powder are used as matrix materials, and BaCu(B<2>O<7>) prepared from B(OH)<2>. 8H<2>O powder, H<3>BO<3> powder and CuO powder in a molar ratio of 1: 2: 1 is taken as a sintering aid for preparation of the silver niobate-based antiferroelectric energy storage ceramic. According to the invention, the preparation process of the silver niobate-based antiferroelectric energy storage ceramic is simplified on the premise of ensuring high energy storage characteristics, the silver niobate-based antiferroelectric energy storage ceramic with high energy storage density, high energy storage efficiency and good temperature stability is prepared, and the preparation method is an innovation of a novel preparation method of the silver niobate-based antiferroelectric energy storage ceramic.
本发明涉及高储能特性铌酸银基反铁电储能陶瓷及其低温烧结方法，可有效解决现有技术击穿场强低、制备工艺复杂、反铁电相不稳定的问题，其解决的技术方案是，本发明以组分(1‑x)AgNbO3‑x(Sr0.7Bi0.2)HfO3‑0.01BCB为基础，采用传统的固相反应法，将高纯的Ag2O粉体、Nb2O5粉体、SrCO3粉体、Bi2O3粉体和HfO2粉体作为基体材料；以Ba(OH)2·8H2O粉体、H3BO3粉体和CuO粉体按摩尔比1:2:1制备而成的BaCu(B2O7)作为烧结助剂制备而成，本发明在保证高储能特性的前提下，简化铌酸银基反铁电储能陶瓷的制备工艺，制备出高储能密度，高储能效率并具有良好温度稳定性的铌酸银基反铁电储能陶瓷，是铌酸银基反铁电储能陶瓷制备方法上的创新。
Silver niobate-based antiferroelectric energy storage ceramic with high energy storage characteristic, and low-temperature sintering method thereof
一种高储能特性铌酸银基反铁电储能陶瓷及其低温烧结方法
XU YONGHAO (author) / YANG ZHENDONG (author) / TIAN JINGJING (author) / TIAN HENG (author)
2021-11-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2020
| European Patent Office | 2023
| European Patent Office | 2020
| European Patent Office | 2023
| European Patent Office | 2024