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Medium-entropy ceramic material with high energy storage density and high energy storage efficiency and preparation method thereof
The invention discloses a medium-entropy ceramic material with high energy storage density and high energy storage efficiency and a preparation method thereof, and the preparation method comprises the following steps: 1, according to the chemical formula (Ba0. 6Na0. 2Bi0. 2) TiO3 and NaNbO3, mixing Na2CO3, Bi2O3, BaCO3 and TiO2 according to the molar ratio of metal atoms to obtain a mixture A; na2CO3 and Nb2O5 are taken and mixed, and a mixture B is obtained; 2, the mixture A and the mixture B are subjected to ball milling and drying respectively, the mixture A is placed in a muffle furnace, the temperature is increased to 850-875 DEG C, heat preservation is conducted, and (Ba0. 6Na0. 2Bi0. 2) TiO3 is obtained; placing the mixture B in a muffle furnace, heating to 825-850 DEG C, and keeping the temperature to obtain NaNbO3 powder; 3, (Ba0. 6Na0. 2Bi0. 2) TiO3 and NaNbO3 are mixed, a mixture C is obtained, the mixture C is subjected to ball milling, drying, sieving and tabletting, and (1-x) (Ba0. 6Na0. 2Bi0. 2) TiO3-xNaNbO3 is obtained; and 4, putting the (1-x) (Ba0. 6Na0. 2Bi0. 2) TiO3-xNaNbO3 into a high-temperature box-type furnace, heating to 1145-1165 DEG C in an oxygen atmosphere, and carrying out heat preservation, so as to obtain the medium-entropy ceramic material with high energy storage density and high energy storage efficiency.
本发明公开了一种具有高储能密度和高储能效率的中熵陶瓷材料及其制备方法，包括步骤：1、依据化学式(Ba0.6Na0.2Bi0.2)TiO3和NaNbO3，按照金属原子的摩尔比取Na2CO3、Bi2O3、BaCO3和TiO2混合，得到混合物A；取Na2CO3和Nb2O5混合，得到混合物B；2、将混合物A和混合物B分别球磨、烘干，将混合物A置于马弗炉中，升温至850‑875℃并保温，得到(Ba0.6Na0.2Bi0.2)TiO3；将混合物B置于马弗炉中升温至825‑850℃并保温，得到NaNbO3粉体；3、将(Ba0.6Na0.2Bi0.2)TiO3和NaNbO3进行混合，得到混合物C，将混合物C球磨、烘干、过筛和压片，得到(1‑x)(Ba0.6Na0.2Bi0.2)TiO3‑xNaNbO3；4、将(1‑x)(Ba0.6Na0.2Bi0.2)TiO3‑xNaNbO3置于高温箱式炉中，在氧气气氛下，升温至1145‑1165℃并保温，得到具有高储能密度和高储能效率的中熵陶瓷材料。
Medium-entropy ceramic material with high energy storage density and high energy storage efficiency and preparation method thereof
The invention discloses a medium-entropy ceramic material with high energy storage density and high energy storage efficiency and a preparation method thereof, and the preparation method comprises the following steps: 1, according to the chemical formula (Ba0. 6Na0. 2Bi0. 2) TiO3 and NaNbO3, mixing Na2CO3, Bi2O3, BaCO3 and TiO2 according to the molar ratio of metal atoms to obtain a mixture A; na2CO3 and Nb2O5 are taken and mixed, and a mixture B is obtained; 2, the mixture A and the mixture B are subjected to ball milling and drying respectively, the mixture A is placed in a muffle furnace, the temperature is increased to 850-875 DEG C, heat preservation is conducted, and (Ba0. 6Na0. 2Bi0. 2) TiO3 is obtained; placing the mixture B in a muffle furnace, heating to 825-850 DEG C, and keeping the temperature to obtain NaNbO3 powder; 3, (Ba0. 6Na0. 2Bi0. 2) TiO3 and NaNbO3 are mixed, a mixture C is obtained, the mixture C is subjected to ball milling, drying, sieving and tabletting, and (1-x) (Ba0. 6Na0. 2Bi0. 2) TiO3-xNaNbO3 is obtained; and 4, putting the (1-x) (Ba0. 6Na0. 2Bi0. 2) TiO3-xNaNbO3 into a high-temperature box-type furnace, heating to 1145-1165 DEG C in an oxygen atmosphere, and carrying out heat preservation, so as to obtain the medium-entropy ceramic material with high energy storage density and high energy storage efficiency.
本发明公开了一种具有高储能密度和高储能效率的中熵陶瓷材料及其制备方法，包括步骤：1、依据化学式(Ba0.6Na0.2Bi0.2)TiO3和NaNbO3，按照金属原子的摩尔比取Na2CO3、Bi2O3、BaCO3和TiO2混合，得到混合物A；取Na2CO3和Nb2O5混合，得到混合物B；2、将混合物A和混合物B分别球磨、烘干，将混合物A置于马弗炉中，升温至850‑875℃并保温，得到(Ba0.6Na0.2Bi0.2)TiO3；将混合物B置于马弗炉中升温至825‑850℃并保温，得到NaNbO3粉体；3、将(Ba0.6Na0.2Bi0.2)TiO3和NaNbO3进行混合，得到混合物C，将混合物C球磨、烘干、过筛和压片，得到(1‑x)(Ba0.6Na0.2Bi0.2)TiO3‑xNaNbO3；4、将(1‑x)(Ba0.6Na0.2Bi0.2)TiO3‑xNaNbO3置于高温箱式炉中，在氧气气氛下，升温至1145‑1165℃并保温，得到具有高储能密度和高储能效率的中熵陶瓷材料。
Medium-entropy ceramic material with high energy storage density and high energy storage efficiency and preparation method thereof
具有高储能密度和高储能效率的中熵陶瓷材料及其制备方法
PU YONGPING (author) / NING YATING (author) / ZHANG JINBO (author) / ZHANG XIAN (author) / SHANG YANGCHAO (author)
2023-04-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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