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Strong-field high-dielectric energy-storage relaxor ferroelectric ceramic material and preparation method thereof
The invention discloses a high-field high-dielectric energy-storage relaxor ferroelectric ceramic material and a preparation method thereof. The chemical formula of the ceramic material is xBi < 0.5 > Na < 0.5 > TiO < 3-y > SrTiO < 3-z > NaNbO < 3 >, x + y + z = 1, and x < lt > is not less than 0.4; 0.6, 0.4 lt; y is less than or equal to 0.6, 0lt; and z < = 0.2. The relaxor ferroelectric ceramic material is prepared by adopting a solid phase method, the technological process is simple, the preparation is efficient, and the cost is low. The relaxor ferroelectric ceramic material provided by the invention is lead-free, environment-friendly and excellent in performance, the dielectric constant of the relaxor ferroelectric ceramic material under an external electric field of 270kV/cm reaches up to 856, the discharge energy storage density is 4.11 J/cm < 3 >, the energy storage efficiency is 90.1%, and the relaxor ferroelectric ceramic material is very suitable for a strong field working environment.
本发明公开了一种强场高介储能弛豫铁电陶瓷材料及其制备方法。所述陶瓷材料的化学式为：xBi0.5Na0.5TiO3‑ySrTiO3‑zNaNbO3，其中，x+y+z＝1，0.4≤x<0.6，0.4
Strong-field high-dielectric energy-storage relaxor ferroelectric ceramic material and preparation method thereof
The invention discloses a high-field high-dielectric energy-storage relaxor ferroelectric ceramic material and a preparation method thereof. The chemical formula of the ceramic material is xBi < 0.5 > Na < 0.5 > TiO < 3-y > SrTiO < 3-z > NaNbO < 3 >, x + y + z = 1, and x < lt > is not less than 0.4; 0.6, 0.4 lt; y is less than or equal to 0.6, 0lt; and z < = 0.2. The relaxor ferroelectric ceramic material is prepared by adopting a solid phase method, the technological process is simple, the preparation is efficient, and the cost is low. The relaxor ferroelectric ceramic material provided by the invention is lead-free, environment-friendly and excellent in performance, the dielectric constant of the relaxor ferroelectric ceramic material under an external electric field of 270kV/cm reaches up to 856, the discharge energy storage density is 4.11 J/cm < 3 >, the energy storage efficiency is 90.1%, and the relaxor ferroelectric ceramic material is very suitable for a strong field working environment.
本发明公开了一种强场高介储能弛豫铁电陶瓷材料及其制备方法。所述陶瓷材料的化学式为：xBi0.5Na0.5TiO3‑ySrTiO3‑zNaNbO3，其中，x+y+z＝1，0.4≤x<0.6，0.4
Strong-field high-dielectric energy-storage relaxor ferroelectric ceramic material and preparation method thereof
一种强场高介储能弛豫铁电陶瓷材料及其制备方法
CAI ZIMING (author) / LI XINHENG (author) / ZHU CHAOQIONG (author) / FENG PEIZHONG (author) / LI SHIHENG (author) / LI AOYU (author)
2024-10-18
Patent
Electronic Resource
Chinese
Lead-free relaxor ferroelectric ceramic material and preparation method thereof
| European Patent Office | 2021