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Ferroelectric energy storage ceramic material with Gd-Ta co-doped tungsten bronze structure and preparation method of ferroelectric energy storage ceramic material
The invention discloses a ferroelectric energy storage ceramic material with a Gd-Ta co-doped tungsten bronze structure, the structural formula of the ferroelectric energy storage ceramic material is Sr (0.53-0.15 x) Ba < 0.47 > GdxNb < 2-y > TayO6, the value of x is 0.01-0.1, and the value of y is 0.1-0.5. The invention also discloses a preparation method of the material, and the preparation method specifically comprises the following steps: weighing BaCO3, SrCO3, Gd2O3, Nb2O5 and Ta2O5, fully mixing, ball-milling, drying, pre-sintering, granulating, tabletting and degumming the pre-sintered powder, and sintering to obtain the material. By doping Gd and Ta in the ceramic material, not only is high energy storage density obtained, but also the energy storage efficiency of the ceramic material is remarkably improved, the temperature stability of the energy storage performance of the ceramic material is improved, the breakdown field strength at 140 DEG C can reach 400 kV. Cm <-1 >, and the energy storage density reaches 85%.
本发明公开了Gd‑Ta共掺杂钨青铜结构铁电储能陶瓷材料，该铁电储能陶瓷材料的结构式为Sr(0.53‑0.15x)Ba0.47GdxNb2‑yTayO6，其中，x的取值为0.01～0.1，y的取值为0.1～0.5。本发明还公开了其制备方法，具体为：称取BaCO3、SrCO3、Gd2O3、Nb2O5、Ta2O5，充分混合球磨，干燥后进行预烧，将预烧粉经造粒、压片、排胶后，进行烧结，即可。通过在陶瓷材料中掺杂Gd和Ta，不但获得了高储能密度，且显著提高了其储能效率，并改善了其储能性能的温度稳定性，在140℃下击穿场强可以达到400kV·cm‑1，储能密度达到85％。
Ferroelectric energy storage ceramic material with Gd-Ta co-doped tungsten bronze structure and preparation method of ferroelectric energy storage ceramic material
The invention discloses a ferroelectric energy storage ceramic material with a Gd-Ta co-doped tungsten bronze structure, the structural formula of the ferroelectric energy storage ceramic material is Sr (0.53-0.15 x) Ba < 0.47 > GdxNb < 2-y > TayO6, the value of x is 0.01-0.1, and the value of y is 0.1-0.5. The invention also discloses a preparation method of the material, and the preparation method specifically comprises the following steps: weighing BaCO3, SrCO3, Gd2O3, Nb2O5 and Ta2O5, fully mixing, ball-milling, drying, pre-sintering, granulating, tabletting and degumming the pre-sintered powder, and sintering to obtain the material. By doping Gd and Ta in the ceramic material, not only is high energy storage density obtained, but also the energy storage efficiency of the ceramic material is remarkably improved, the temperature stability of the energy storage performance of the ceramic material is improved, the breakdown field strength at 140 DEG C can reach 400 kV. Cm <-1 >, and the energy storage density reaches 85%.
本发明公开了Gd‑Ta共掺杂钨青铜结构铁电储能陶瓷材料，该铁电储能陶瓷材料的结构式为Sr(0.53‑0.15x)Ba0.47GdxNb2‑yTayO6，其中，x的取值为0.01～0.1，y的取值为0.1～0.5。本发明还公开了其制备方法，具体为：称取BaCO3、SrCO3、Gd2O3、Nb2O5、Ta2O5，充分混合球磨，干燥后进行预烧，将预烧粉经造粒、压片、排胶后，进行烧结，即可。通过在陶瓷材料中掺杂Gd和Ta，不但获得了高储能密度，且显著提高了其储能效率，并改善了其储能性能的温度稳定性，在140℃下击穿场强可以达到400kV·cm‑1，储能密度达到85％。
Ferroelectric energy storage ceramic material with Gd-Ta co-doped tungsten bronze structure and preparation method of ferroelectric energy storage ceramic material
Gd-Ta共掺杂钨青铜结构铁电储能陶瓷材料及制备方法
YANG BIAN (author) / SUN SHAODONG (author) / GUO YU (author) / YANG MAN (author) / CUI JIE (author) / ZHANG JIAYU (author)
2022-06-10
Patent
Electronic Resource
Chinese
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