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MLCC pulse power capacitor of anti-ferroelectric material system and preparation method
The invention discloses an MLCC pulse power capacitor of an anti-ferroelectric material system and a preparation method, and belongs to the technical field of electronic information materials and components. The pulse power capacitor is of a 'dielectric layer/(electrode layer/dielectric layer) n' multilayer structure, the dielectric layer is composite ceramic of (Pb<1-1.5>aLaa) (Zr<1-b-c>SnbTic)O3 and H3BO3, the mass percentage of (Pb<1-1.5>aLaa) (Zr< 1-b-c >SnbTic) O3 is 99.1-99.9 wt%, and the mass percentage of H3BO3 is 0.1-0.9 wt%. According to the invention, boric acid is added into anti-ferroelectric ceramic to introduce a glass skeleton element, boron and metal elements generate a glass phase structure in a high-temperature molten state, and grain pores are effectively filled; meanwhile, the authigenic glass phase can effectively boost melting and increase the density of the ceramic, so that the energy storage density is improved, and the electrode cost of the MLCC is reduced.
一种反铁电材料体系的MLCC脉冲功率电容器及制备方法，属于电子信息材料与元器件技术领域。该脉冲功率电容器为“介质层/(电极层/介质层)n”多层结构，介质层为(Pb1‑1.5aLaa)(Zr1‑b‑cSnbTic)O3与H3BO3的复合陶瓷，(Pb1‑1.5aLaa)(Zr1‑b‑cSnbTic)O3的质量百分比99.1～99.9wt％，H3BO3的质量百分比0.1～0.9wt％。本发明通过在反铁电陶瓷中添加硼酸来引入玻璃骨架元素，在高温熔融状态下硼与金属元素生成玻璃相结构，有效填充了晶粒孔隙；同时，自生的玻璃相可以有效助熔，增加陶瓷致密度，进而提升储能密度，降低MLCC的电极成本。
MLCC pulse power capacitor of anti-ferroelectric material system and preparation method
The invention discloses an MLCC pulse power capacitor of an anti-ferroelectric material system and a preparation method, and belongs to the technical field of electronic information materials and components. The pulse power capacitor is of a 'dielectric layer/(electrode layer/dielectric layer) n' multilayer structure, the dielectric layer is composite ceramic of (Pb<1-1.5>aLaa) (Zr<1-b-c>SnbTic)O3 and H3BO3, the mass percentage of (Pb<1-1.5>aLaa) (Zr< 1-b-c >SnbTic) O3 is 99.1-99.9 wt%, and the mass percentage of H3BO3 is 0.1-0.9 wt%. According to the invention, boric acid is added into anti-ferroelectric ceramic to introduce a glass skeleton element, boron and metal elements generate a glass phase structure in a high-temperature molten state, and grain pores are effectively filled; meanwhile, the authigenic glass phase can effectively boost melting and increase the density of the ceramic, so that the energy storage density is improved, and the electrode cost of the MLCC is reduced.
一种反铁电材料体系的MLCC脉冲功率电容器及制备方法，属于电子信息材料与元器件技术领域。该脉冲功率电容器为“介质层/(电极层/介质层)n”多层结构，介质层为(Pb1‑1.5aLaa)(Zr1‑b‑cSnbTic)O3与H3BO3的复合陶瓷，(Pb1‑1.5aLaa)(Zr1‑b‑cSnbTic)O3的质量百分比99.1～99.9wt％，H3BO3的质量百分比0.1～0.9wt％。本发明通过在反铁电陶瓷中添加硼酸来引入玻璃骨架元素，在高温熔融状态下硼与金属元素生成玻璃相结构，有效填充了晶粒孔隙；同时，自生的玻璃相可以有效助熔，增加陶瓷致密度，进而提升储能密度，降低MLCC的电极成本。
MLCC pulse power capacitor of anti-ferroelectric material system and preparation method
反铁电材料体系的MLCC脉冲功率电容器及制备方法
CHEN HONGWEI (author) / WANG ZHIQIANG (author) / GAO LIBIN (author) / ZHANG JIHUA (author)
2021-07-06
Patent
Electronic Resource
Chinese
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