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Ternary multiferroic ceramic and preparation method thereof
The invention relates to a novel ternary multiferroic ceramic and a preparation method thereof. The ternary multiferroic ceramic with the general chemical formula of (0.57-x)Bi[0.8]La[0.2]Fe[3]-0.43PbTiO[3]-xGaFeO[3]is prepared by utilizing a solid-phase reaction method, and the content x of the third component GaFeO[3] is equal to 0, 0.04 and 0.06. The ferromagnetism of the multiferroic ceramic disclosed by the invention is remarkably improved while good ferroelectricity is kept. The remnant polarization value and the remnant magnetization value of the optimal components of the ceramic respectively reach 38 [mu]C/cm<2> and 0.66 emu/g at room temperature. According to the novel ternary multiferroic ceramicl and the preparation method thereof disclosed by the invention, GaFeO[3] with piezoelectricity and ferromagnetism is introduced as a third component to modify a BLF-PT ceramic; the BLF-PT-GF ternary multiferroic ceramic with excellent electrical and magnetic properties is prepared, so that the application of the bismuth ferrite-lead titanate-based ceramic in the field of multiferroic material research strides a great step.
本申请涉及一种新型三元系多铁性陶瓷及其制备方法，利用固相反应法制备了一种化学通式为(0.57‑x)Bi0.8La0.2FeO3‑0.43PbTiO3‑xGaFeO3的三元系多铁性陶瓷，第三组元GaFeO3的含量x＝0，0.04和0.06。本申请中的多铁性陶瓷在保持良好铁电性的同时，铁磁性得到了显著提高。该陶瓷的最佳组分在室温条件下剩余极化值和剩余磁化值分别达到了38μC/cm2和0.66emu/g。本申请通过引入兼具压电性和铁磁性的GaFeO3作为第三组元对BLF‑PT陶瓷进行改性，制备出了兼具优异电学和磁学性能的BLF‑PT‑GF三元系多铁性陶瓷，使铁酸铋‑钛酸铅基陶瓷在多铁性材料研究领域的应用化迈出了很大的一步。
Ternary multiferroic ceramic and preparation method thereof
The invention relates to a novel ternary multiferroic ceramic and a preparation method thereof. The ternary multiferroic ceramic with the general chemical formula of (0.57-x)Bi[0.8]La[0.2]Fe[3]-0.43PbTiO[3]-xGaFeO[3]is prepared by utilizing a solid-phase reaction method, and the content x of the third component GaFeO[3] is equal to 0, 0.04 and 0.06. The ferromagnetism of the multiferroic ceramic disclosed by the invention is remarkably improved while good ferroelectricity is kept. The remnant polarization value and the remnant magnetization value of the optimal components of the ceramic respectively reach 38 [mu]C/cm<2> and 0.66 emu/g at room temperature. According to the novel ternary multiferroic ceramicl and the preparation method thereof disclosed by the invention, GaFeO[3] with piezoelectricity and ferromagnetism is introduced as a third component to modify a BLF-PT ceramic; the BLF-PT-GF ternary multiferroic ceramic with excellent electrical and magnetic properties is prepared, so that the application of the bismuth ferrite-lead titanate-based ceramic in the field of multiferroic material research strides a great step.
本申请涉及一种新型三元系多铁性陶瓷及其制备方法，利用固相反应法制备了一种化学通式为(0.57‑x)Bi0.8La0.2FeO3‑0.43PbTiO3‑xGaFeO3的三元系多铁性陶瓷，第三组元GaFeO3的含量x＝0，0.04和0.06。本申请中的多铁性陶瓷在保持良好铁电性的同时，铁磁性得到了显著提高。该陶瓷的最佳组分在室温条件下剩余极化值和剩余磁化值分别达到了38μC/cm2和0.66emu/g。本申请通过引入兼具压电性和铁磁性的GaFeO3作为第三组元对BLF‑PT陶瓷进行改性，制备出了兼具优异电学和磁学性能的BLF‑PT‑GF三元系多铁性陶瓷，使铁酸铋‑钛酸铅基陶瓷在多铁性材料研究领域的应用化迈出了很大的一步。
Ternary multiferroic ceramic and preparation method thereof
三元系多铁性陶瓷及其制备方法
GUAN HAOWEN (author) / CHEN YIXUAN (author) / JIAN JIE (author)
2020-11-06
Patent
Electronic Resource
Chinese
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