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High-energy-storage non-equimolar-ratio high-entropy perovskite oxide ceramic material and preparation method thereof
The invention discloses a high-energy-storage non-equimolar-ratio high-entropy perovskite oxide ceramic material and a preparation method thereof. The chemical formula of the ceramic material is (NaBiBa)x(SrCa)<(1-3x)/2>TiO3, x = 0.19-0.21, and x is molar percentage. The preparation method comprises the following steps: preparing materials according to a chemical formula, carrying out wet ball-milling mixing on the powder, pre-sintering the dried powder at 9009 DEG C for 4 hours, carrying out secondary ball-milling, sieving and molding, and finally sintering at 12409-12109 DEG C for 2 hours to obtain the single-phase high-entropy perovskite oxide ceramic material. The preparation method has the characteristics of cheap selected raw materials, simple preparation process and short production period; meanwhile, the prepared high-entropy ceramic material has high breakdown electric field and polarization intensity, when x is equal to 0.205, the energy storage density can reach 3.819 J/cm<3>, and a new lead-free energy storage material matrix is provided.
本发明公开一种高储能的非等摩尔比高熵钙钛矿氧化物陶瓷材料及其制备方法，陶瓷材料化学式为(NaBiBa)x(SrCa)(1‑3x)/2TiO3，其中x＝0.19～0.21，x为摩尔百分比；根据化学式配料并对粉体进行湿法球磨混合，干燥后的粉体在9009℃下预烧4h，再经过二次球磨、过筛和成型，最终在12409℃‑12109℃温度下烧结2h得到了单相的高熵钙钛矿氧化物陶瓷材料；本发明具有选用原料廉价、制备工艺简单、生产周期短的特点；同时所制备的高熵陶瓷材料具有高的击穿电场和极化强度，当x＝0.205时，可使储能密度达到3.819J/cm3，提供了一种新的无铅储能材料基体。
High-energy-storage non-equimolar-ratio high-entropy perovskite oxide ceramic material and preparation method thereof
The invention discloses a high-energy-storage non-equimolar-ratio high-entropy perovskite oxide ceramic material and a preparation method thereof. The chemical formula of the ceramic material is (NaBiBa)x(SrCa)<(1-3x)/2>TiO3, x = 0.19-0.21, and x is molar percentage. The preparation method comprises the following steps: preparing materials according to a chemical formula, carrying out wet ball-milling mixing on the powder, pre-sintering the dried powder at 9009 DEG C for 4 hours, carrying out secondary ball-milling, sieving and molding, and finally sintering at 12409-12109 DEG C for 2 hours to obtain the single-phase high-entropy perovskite oxide ceramic material. The preparation method has the characteristics of cheap selected raw materials, simple preparation process and short production period; meanwhile, the prepared high-entropy ceramic material has high breakdown electric field and polarization intensity, when x is equal to 0.205, the energy storage density can reach 3.819 J/cm<3>, and a new lead-free energy storage material matrix is provided.
本发明公开一种高储能的非等摩尔比高熵钙钛矿氧化物陶瓷材料及其制备方法，陶瓷材料化学式为(NaBiBa)x(SrCa)(1‑3x)/2TiO3，其中x＝0.19～0.21，x为摩尔百分比；根据化学式配料并对粉体进行湿法球磨混合，干燥后的粉体在9009℃下预烧4h，再经过二次球磨、过筛和成型，最终在12409℃‑12109℃温度下烧结2h得到了单相的高熵钙钛矿氧化物陶瓷材料；本发明具有选用原料廉价、制备工艺简单、生产周期短的特点；同时所制备的高熵陶瓷材料具有高的击穿电场和极化强度，当x＝0.205时，可使储能密度达到3.819J/cm3，提供了一种新的无铅储能材料基体。
High-energy-storage non-equimolar-ratio high-entropy perovskite oxide ceramic material and preparation method thereof
一种高储能的非等摩尔比高熵钙钛矿氧化物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) / WU CHUNHUI (author)
2022-02-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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