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Lead-free KNN series piezoelectric ceramic material with high piezoelectric property and preparation method of lead-free KNN series piezoelectric ceramic material
The invention relates to the technical field of lead-free KNN series piezoelectric ceramic materials and preparation methods thereof, in particular to a lead-free KNN series piezoelectric ceramic material with high piezoelectric performance and a preparation method of the lead-free KNN series piezoelectric ceramic material with the high piezoelectric performance and the preparation method of the lead-free KNN series piezoelectric ceramic material with the high piezoelectric performance. The invention discloses a high-temperature-resistant coating which comprises the following components in parts by weight: 60-75% of sodium carbonate, 60-75% of potassium carbonate, 40-50% of lithium carbonate, 30-40% of niobium pentoxide, 20-30% of antimony trioxide, 16-20% of calcium carbonate, 1-2% of calcium zirconate, 16-20% of a binder, 1-4% of a plasticizer and 1-4% of a dispersant. The invention provides a lead-free KNN series piezoelectric ceramic material with high piezoelectric performance, the piezoelectric ceramic is a typical tetragonal structure system, ceramic particles are prepared through secondary grinding, ball milling can be more sufficient and uniform through adding of a dispersing agent, Tc and T0-T can move towards the low temperature direction through calcium zirconate, and the piezoelectric performance is improved. Domain wall movement and electric domain overturning are easier in an external electric field, and the piezoelectric property is enhanced.
本发明涉及无铅KNN系压电陶瓷材料及其制备方法技术领域，尤其涉及一种高压电性能的无铅KNN系压电陶瓷材料及其制备方法，一种高压电性能的无铅KNN系压电陶瓷材料及其制备方法，由以下重量份组分组成：碳酸钠60％‑75％、碳酸钾60％‑75％、碳酸锂40％‑50％、五氧化铌30％‑40％、三氧化二锑20％‑30％、碳酸钙16％‑20％、锆酸钙1％‑2％、粘结剂16％‑20％、增塑剂1％‑4％、分散剂1％‑4％。本发明提供了一种高压电性能的无铅KNN系压电陶瓷材料，该压电陶瓷为典型的四方结构体系，通过二次研磨制备陶瓷颗粒，能够使分散剂的加入使得球磨更加充分均匀，通过锆酸钙，能够使Tc与T0‑T与向低温方向移动，导致畴壁运动与电畴翻转在外电场下更加容易，压电性能得以增强。
Lead-free KNN series piezoelectric ceramic material with high piezoelectric property and preparation method of lead-free KNN series piezoelectric ceramic material
The invention relates to the technical field of lead-free KNN series piezoelectric ceramic materials and preparation methods thereof, in particular to a lead-free KNN series piezoelectric ceramic material with high piezoelectric performance and a preparation method of the lead-free KNN series piezoelectric ceramic material with the high piezoelectric performance and the preparation method of the lead-free KNN series piezoelectric ceramic material with the high piezoelectric performance. The invention discloses a high-temperature-resistant coating which comprises the following components in parts by weight: 60-75% of sodium carbonate, 60-75% of potassium carbonate, 40-50% of lithium carbonate, 30-40% of niobium pentoxide, 20-30% of antimony trioxide, 16-20% of calcium carbonate, 1-2% of calcium zirconate, 16-20% of a binder, 1-4% of a plasticizer and 1-4% of a dispersant. The invention provides a lead-free KNN series piezoelectric ceramic material with high piezoelectric performance, the piezoelectric ceramic is a typical tetragonal structure system, ceramic particles are prepared through secondary grinding, ball milling can be more sufficient and uniform through adding of a dispersing agent, Tc and T0-T can move towards the low temperature direction through calcium zirconate, and the piezoelectric performance is improved. Domain wall movement and electric domain overturning are easier in an external electric field, and the piezoelectric property is enhanced.
本发明涉及无铅KNN系压电陶瓷材料及其制备方法技术领域，尤其涉及一种高压电性能的无铅KNN系压电陶瓷材料及其制备方法，一种高压电性能的无铅KNN系压电陶瓷材料及其制备方法，由以下重量份组分组成：碳酸钠60％‑75％、碳酸钾60％‑75％、碳酸锂40％‑50％、五氧化铌30％‑40％、三氧化二锑20％‑30％、碳酸钙16％‑20％、锆酸钙1％‑2％、粘结剂16％‑20％、增塑剂1％‑4％、分散剂1％‑4％。本发明提供了一种高压电性能的无铅KNN系压电陶瓷材料，该压电陶瓷为典型的四方结构体系，通过二次研磨制备陶瓷颗粒，能够使分散剂的加入使得球磨更加充分均匀，通过锆酸钙，能够使Tc与T0‑T与向低温方向移动，导致畴壁运动与电畴翻转在外电场下更加容易，压电性能得以增强。
Lead-free KNN series piezoelectric ceramic material with high piezoelectric property and preparation method of lead-free KNN series piezoelectric ceramic material
一种高压电性能的无铅KNN系压电陶瓷材料及其制备方法
WU GUOBIAO (Autor:in) / LI JIAN (Autor:in) / LI LICHEN (Autor:in) / JIANG LIN (Autor:in)
18.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2022