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Sodium bismuth titanate-based lead-free ferroelectric ceramic material with high dielectric temperature stability and energy storage characteristic and preparation method of sodium bismuth titanate-based lead-free ferroelectric ceramic material
The invention discloses a sodium bismuth titanate-based lead-free ferroelectric ceramic material with high dielectric temperature stability and energy storage characteristics and a preparation method thereof, the general formula of the ceramic material is (1-x)Bi0.5Na0.5TiO3-xCaSnO3, and the value of x is 0.10-0.15. The preparation method comprises the following steps: proportioning, ball-milling, pre-sintering, sieving, tabletting and sintering. The preparation method is simple, low in cost, good in repeatability and high in yield. When x is equal to 0.12, the dielectric constant epsilon r150 DEG C of the ceramic material at a reference temperature is equal to 840, the dielectric loss tan delta 150 DEG C is equal to 0.003, within the temperature range of -94 to 500 DEG C, the temperature capacitance change rate meets the condition that TCC150 DEG C is smaller than or equal to +/- 15%, the dielectric constant of the ceramic material changes slightly along with the temperature, and the ceramic material has excellent temperature stability and good energy storage performance.
本发明公开了一种高介电温度稳定兼具储能特性的钛酸铋钠基无铅铁电陶瓷材料及其制备方法，该陶瓷材料的通式为(1‑x)Bi0.5Na0.5TiO3‑xCaSnO3，其中x的取值为0.10～0.15。本发明通过配料、球磨、预烧、过筛、压片、烧结制备而成。本发明制备方法简单、成本低廉、重复性好、成品率高。其中x＝0.12时，陶瓷材料在基准温度下的介电常数为εr150℃＝840、介电损耗tanδ150℃＝0.003，在‑94～500℃的温度范围内，容温变化率满足TCC150℃≤±15％，其介电常数随温度变化小，具有优异的温度稳定性，同时具有好的储能性能。
Sodium bismuth titanate-based lead-free ferroelectric ceramic material with high dielectric temperature stability and energy storage characteristic and preparation method of sodium bismuth titanate-based lead-free ferroelectric ceramic material
The invention discloses a sodium bismuth titanate-based lead-free ferroelectric ceramic material with high dielectric temperature stability and energy storage characteristics and a preparation method thereof, the general formula of the ceramic material is (1-x)Bi0.5Na0.5TiO3-xCaSnO3, and the value of x is 0.10-0.15. The preparation method comprises the following steps: proportioning, ball-milling, pre-sintering, sieving, tabletting and sintering. The preparation method is simple, low in cost, good in repeatability and high in yield. When x is equal to 0.12, the dielectric constant epsilon r150 DEG C of the ceramic material at a reference temperature is equal to 840, the dielectric loss tan delta 150 DEG C is equal to 0.003, within the temperature range of -94 to 500 DEG C, the temperature capacitance change rate meets the condition that TCC150 DEG C is smaller than or equal to +/- 15%, the dielectric constant of the ceramic material changes slightly along with the temperature, and the ceramic material has excellent temperature stability and good energy storage performance.
本发明公开了一种高介电温度稳定兼具储能特性的钛酸铋钠基无铅铁电陶瓷材料及其制备方法，该陶瓷材料的通式为(1‑x)Bi0.5Na0.5TiO3‑xCaSnO3，其中x的取值为0.10～0.15。本发明通过配料、球磨、预烧、过筛、压片、烧结制备而成。本发明制备方法简单、成本低廉、重复性好、成品率高。其中x＝0.12时，陶瓷材料在基准温度下的介电常数为εr150℃＝840、介电损耗tanδ150℃＝0.003，在‑94～500℃的温度范围内，容温变化率满足TCC150℃≤±15％，其介电常数随温度变化小，具有优异的温度稳定性，同时具有好的储能性能。
Sodium bismuth titanate-based lead-free ferroelectric ceramic material with high dielectric temperature stability and energy storage characteristic and preparation method of sodium bismuth titanate-based lead-free ferroelectric ceramic material
高介电温度稳定兼具储能特性的钛酸铋钠基无铅铁电陶瓷材料及其制备方法
YANG ZUPEI (Autor:in) / ZHOU QIYUAN (Autor:in) / CHAO XIAOLIAN (Autor:in) / PENG ZHANHUI (Autor:in)
03.12.2021
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2024