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Potassium-sodium niobate-based ceramic material with excellent fatigue resistance and preparation method of potassium-sodium niobate-based ceramic material
The invention discloses a potassium-sodium niobate-based ceramic material with excellent fatigue resistance. The chemical composition general formula of the potassium-sodium niobate-based ceramic material is (1-x) K0. 5Na0. 5NbO3-x (Sr0. 7La0. 2) (Mg1/3Nb2/3) O3, x represents the mole number, and x ranges from 0.03 to 0.12; the ceramic is of a perovskite structure, the breakdown electric field is 230-400 kV/cm, the maximum polarization intensity is 29.6-34.1 [mu] C/cm < 2 >, and the remanent polarization intensity is 4.1-7.4 [mu] C/cm < 2 >. The invention discloses a preparation method of a potassium-sodium niobate-based ceramic material with excellent fatigue resistance. The preparation method comprises the following steps: burdening, primary ball milling, pre-sintering, secondary ball milling, tabletting, cold isostatic pressing and pressureless closed sintering. The potassium-sodium niobate-based ceramic material disclosed by the invention is good in energy storage performance and excellent in fatigue resistance; the preparation method of the ceramic material is simple, good in repeatability and high in yield.
本发明公开的抗疲劳性能优异的铌酸钾钠基陶瓷材料，化学组成通式为：(1‑x)K0.5Na0.5NbO3‑x(Sr0.7La0.2)(Mg1/3Nb2/3)O3；x表示摩尔数，x为0.03～0.12；该陶瓷为钙钛矿结构，击穿电场为230～400kV/cm，最大极化强度为29.6～34.1μC/cm2，剩余极化强度为4.1～7.4μC/cm2；本发明公开的抗疲劳性能优异的铌酸钾钠基陶瓷材料制备方法，步骤如下：配料、一次球磨、预烧、二次球磨、压片及冷等静压、无压密闭烧结。本发明的铌酸钾钠基陶瓷材料，储能性能好、抗疲劳性能优异；本发明的陶瓷材料制备方法，简单、重复性好、成品率高。
Potassium-sodium niobate-based ceramic material with excellent fatigue resistance and preparation method of potassium-sodium niobate-based ceramic material
The invention discloses a potassium-sodium niobate-based ceramic material with excellent fatigue resistance. The chemical composition general formula of the potassium-sodium niobate-based ceramic material is (1-x) K0. 5Na0. 5NbO3-x (Sr0. 7La0. 2) (Mg1/3Nb2/3) O3, x represents the mole number, and x ranges from 0.03 to 0.12; the ceramic is of a perovskite structure, the breakdown electric field is 230-400 kV/cm, the maximum polarization intensity is 29.6-34.1 [mu] C/cm < 2 >, and the remanent polarization intensity is 4.1-7.4 [mu] C/cm < 2 >. The invention discloses a preparation method of a potassium-sodium niobate-based ceramic material with excellent fatigue resistance. The preparation method comprises the following steps: burdening, primary ball milling, pre-sintering, secondary ball milling, tabletting, cold isostatic pressing and pressureless closed sintering. The potassium-sodium niobate-based ceramic material disclosed by the invention is good in energy storage performance and excellent in fatigue resistance; the preparation method of the ceramic material is simple, good in repeatability and high in yield.
本发明公开的抗疲劳性能优异的铌酸钾钠基陶瓷材料，化学组成通式为：(1‑x)K0.5Na0.5NbO3‑x(Sr0.7La0.2)(Mg1/3Nb2/3)O3；x表示摩尔数，x为0.03～0.12；该陶瓷为钙钛矿结构，击穿电场为230～400kV/cm，最大极化强度为29.6～34.1μC/cm2，剩余极化强度为4.1～7.4μC/cm2；本发明公开的抗疲劳性能优异的铌酸钾钠基陶瓷材料制备方法，步骤如下：配料、一次球磨、预烧、二次球磨、压片及冷等静压、无压密闭烧结。本发明的铌酸钾钠基陶瓷材料，储能性能好、抗疲劳性能优异；本发明的陶瓷材料制备方法，简单、重复性好、成品率高。
Potassium-sodium niobate-based ceramic material with excellent fatigue resistance and preparation method of potassium-sodium niobate-based ceramic material
抗疲劳性能优异的铌酸钾钠基陶瓷材料及其制备方法
WANG JUANJUAN (author) / DUAN XUELIANG (author) / MA PENGKANG (author) / LAI FUSHENG (author) / HE HONGYI (author) / WU JIANMING (author) / LU BIN (author)
2023-12-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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