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Potassium sodium niobate-lanthanum bismuthate-sodium niobate-based energy storage ceramic material and preparation method thereof
The invention discloses a potassium sodium niobate-lanthanum bismuthate-sodium niobate-based energy storage ceramic material and a preparation method thereof, the chemical general formula of the energy storage ceramic material is (0.9-x) K < 0.5 > Na < 0.5 > NbO < 3-x > LaBiO < 3-0.1 > NaNbO < 3 >, in which x is greater than or equal to 0.02 and less than or equal to 0.045, in the preparation process, material preparation and ball milling are firstly performed according to the chemical general formula, then an adhesive is added for granulation, compression molding is performed to obtain a ceramic chip, and the ceramic chip is sintered to obtain the potassium sodium niobate-lanthanum bismuthate-sodium niobate-based energy storage ceramic material. And finally, discharging glue and sintering to obtain the energy storage ceramic material. According to the potassium sodium niobate-lanthanum bismuthate-sodium niobate-based energy storage ceramic material and the preparation method thereof, grain refinement of potassium sodium niobate ceramic is promoted by adding a proper amount of lanthanum bismuthate and sodium niobate, the density is improved, and high maximum polarization Pm, low remanent polarization Pr and high breakdown field strength DBS are obtained; in addition, the preparation method is simple and convenient to operate, wide in raw material source, low in equipment cost, capable of meeting the environmental protection requirement and convenient to apply.
本发明公开了一种铌酸钾钠‑铋酸镧‑铌酸钠基储能陶瓷材料及其制备方法，储能陶瓷材料的化学通式为(0.9‑x)K0.5Na0.5NbO3‑xLaBiO3‑0.1NaNbO3，其中0.02≤x≤0.045，制备过程中先按照化学通式进行配料，进行球磨，然后加入粘合剂进行造粒，压制成型得到陶瓷片，最后排胶再烧结得到储能陶瓷材料。本发明采用上述的一种铌酸钾钠‑铋酸镧‑铌酸钠基储能陶瓷材料及其制备方法，通过添加适量的铋酸镧和铌酸钠来促进铌酸钾钠陶瓷的晶粒细化，提高致密度，获得了高的最大极化强度Pm、较低的剩余极化强度Pr和高的击穿场强DBS，从而获得了优异的储能特性，并且本发明操作简便，原料来源广泛，设备成本较低，满足环保要求，便于应用。
Potassium sodium niobate-lanthanum bismuthate-sodium niobate-based energy storage ceramic material and preparation method thereof
The invention discloses a potassium sodium niobate-lanthanum bismuthate-sodium niobate-based energy storage ceramic material and a preparation method thereof, the chemical general formula of the energy storage ceramic material is (0.9-x) K < 0.5 > Na < 0.5 > NbO < 3-x > LaBiO < 3-0.1 > NaNbO < 3 >, in which x is greater than or equal to 0.02 and less than or equal to 0.045, in the preparation process, material preparation and ball milling are firstly performed according to the chemical general formula, then an adhesive is added for granulation, compression molding is performed to obtain a ceramic chip, and the ceramic chip is sintered to obtain the potassium sodium niobate-lanthanum bismuthate-sodium niobate-based energy storage ceramic material. And finally, discharging glue and sintering to obtain the energy storage ceramic material. According to the potassium sodium niobate-lanthanum bismuthate-sodium niobate-based energy storage ceramic material and the preparation method thereof, grain refinement of potassium sodium niobate ceramic is promoted by adding a proper amount of lanthanum bismuthate and sodium niobate, the density is improved, and high maximum polarization Pm, low remanent polarization Pr and high breakdown field strength DBS are obtained; in addition, the preparation method is simple and convenient to operate, wide in raw material source, low in equipment cost, capable of meeting the environmental protection requirement and convenient to apply.
本发明公开了一种铌酸钾钠‑铋酸镧‑铌酸钠基储能陶瓷材料及其制备方法，储能陶瓷材料的化学通式为(0.9‑x)K0.5Na0.5NbO3‑xLaBiO3‑0.1NaNbO3，其中0.02≤x≤0.045，制备过程中先按照化学通式进行配料，进行球磨，然后加入粘合剂进行造粒，压制成型得到陶瓷片，最后排胶再烧结得到储能陶瓷材料。本发明采用上述的一种铌酸钾钠‑铋酸镧‑铌酸钠基储能陶瓷材料及其制备方法，通过添加适量的铋酸镧和铌酸钠来促进铌酸钾钠陶瓷的晶粒细化，提高致密度，获得了高的最大极化强度Pm、较低的剩余极化强度Pr和高的击穿场强DBS，从而获得了优异的储能特性，并且本发明操作简便，原料来源广泛，设备成本较低，满足环保要求，便于应用。
Potassium sodium niobate-lanthanum bismuthate-sodium niobate-based energy storage ceramic material and preparation method thereof
一种铌酸钾钠-铋酸镧-铌酸钠基储能陶瓷材料及其制备方法
ZHU JIANGUO (Autor:in) / GAO TINGTING (Autor:in) / XING JIE (Autor:in) / CHEN QIFAN (Autor:in) / TAN ZHI (Autor:in)
27.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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