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Lead zirconate-based antiferroelectric ceramic as well as preparation method and application thereof
The invention relates to lead zirconate-based anti-ferroelectric ceramic as well as a preparation method and application thereof. The chemical formula of the lead zirconate-based antiferroelectric ceramic is (Pb < 0.98-3x/2 > LaxSr < 0.02 >) (Zr < 1-y > Sn < y >) O < 3 >, xlt; 0, 0.03, 0 lt; y is less than or equal to 0.4, and x and y are molar ratios. Compared with (Pb, Sr) (Zr, Sn) O3 antiferroelectric ceramic not doped with La < 3 + >, the lead zirconate-based antiferroelectric ceramic provided by the technical scheme of the invention is doped with La < 3 + >, so that the energy density of a lead zirconate-based antiferroelectric ceramic capacitor based on the material can be remarkably improved on the premise of being lower than a breakdown electric field. Experiments prove that the recoverable energy density of the lead zirconate-based anti-ferroelectric ceramic capacitor based on the lead zirconate-based anti-ferroelectric ceramic material can reach 13.9 joules per cubic centimeter, and the lead zirconate-based anti-ferroelectric ceramic capacitor is beneficial to wide industrial application.
本发明涉及一种锆酸铅基反铁电陶瓷及其制备方法和应用。锆酸铅基反铁电陶瓷的化学式为(Pb0.98‑3x/2LaxSr0.02)(Zr1‑ySny)O3，其中，0
Lead zirconate-based antiferroelectric ceramic as well as preparation method and application thereof
The invention relates to lead zirconate-based anti-ferroelectric ceramic as well as a preparation method and application thereof. The chemical formula of the lead zirconate-based antiferroelectric ceramic is (Pb < 0.98-3x/2 > LaxSr < 0.02 >) (Zr < 1-y > Sn < y >) O < 3 >, xlt; 0, 0.03, 0 lt; y is less than or equal to 0.4, and x and y are molar ratios. Compared with (Pb, Sr) (Zr, Sn) O3 antiferroelectric ceramic not doped with La < 3 + >, the lead zirconate-based antiferroelectric ceramic provided by the technical scheme of the invention is doped with La < 3 + >, so that the energy density of a lead zirconate-based antiferroelectric ceramic capacitor based on the material can be remarkably improved on the premise of being lower than a breakdown electric field. Experiments prove that the recoverable energy density of the lead zirconate-based anti-ferroelectric ceramic capacitor based on the lead zirconate-based anti-ferroelectric ceramic material can reach 13.9 joules per cubic centimeter, and the lead zirconate-based anti-ferroelectric ceramic capacitor is beneficial to wide industrial application.
本发明涉及一种锆酸铅基反铁电陶瓷及其制备方法和应用。锆酸铅基反铁电陶瓷的化学式为(Pb0.98‑3x/2LaxSr0.02)(Zr1‑ySny)O3，其中，0
Lead zirconate-based antiferroelectric ceramic as well as preparation method and application thereof
锆酸铅基反铁电陶瓷及其制备方法和应用
GU MEIJING (Autor:in) / ZHANG JI (Autor:in) / CAO WENWU (Autor:in)
02.02.2024
Patent
Elektronische Ressource
Chinesisch
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