Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bismuth ferrite-based piezoelectric ceramic material with high depolarization temperature and high piezoelectric property, and preparation method thereof
The invention relates to a bismuth ferrite-based piezoelectric ceramic material with high depolarization temperature and high piezoelectric property, and a preparation method thereof, wherein the general chemical formula of the bismuth ferrite-based piezoelectric ceramic material is (1-x)(0.725BiFeO3-0.275BaTiO3)-xPbTiO3+0.8 mol% MnO2, and x is greater than or equal to 0.1 and less than or equal to 0.3. The preparation method comprises the following steps: mixing all metal oxide raw materials, sequentially carrying out ball milling, drying and presintering, mixing with a manganese source, carrying out secondary ball milling and drying, mixing with PVA, granulating, and carrying out compression molding to obtain a ceramic green body; and finally carrying out rubber discharging and sinteringon the ceramic green body to obtain the bismuth ferrite-based piezoelectric ceramic material. Compared with the prior art, the bismuth ferrite-based piezoelectric ceramic material disclosed by the invention has the advantages that the preparation method is simple, economic, practical and the like, and the prepared bismuth ferrite barium titanate-based piezoelectric ceramic has high Curie temperature, excellent temperature stability and relatively high piezoelectric constant, and shows a wide industrial application prospect.
本发明涉及一种高退极化温度、高压电性能的铁酸铋基压电陶瓷材料及其制备方法，其化学通式为(1‑x)(0.725BiFeO3‑0.275BaTiO3)‑xPbTiO3+0.8mol％MnO2，其中0.1≤x≤0.3；制备方法包括首先将各金属氧化物原料混合并依次进行球磨、干燥、预烧后，再与锰源混合并进行二次球磨与干燥，之后与PVA混合并进行造粒与压制成型后，得到陶瓷生坯；最后将陶瓷生坯进行排胶与烧结后，即得到铁酸铋基压电陶瓷材料。与现有技术相比，本发明具有制备方法简单、经济实用等优点，所制备的铁酸铋‑钛酸钡基压电陶瓷具有高居里温度、优异的温度稳定性以及较高的压电常数，表现出广阔的工业应用前景。
Bismuth ferrite-based piezoelectric ceramic material with high depolarization temperature and high piezoelectric property, and preparation method thereof
The invention relates to a bismuth ferrite-based piezoelectric ceramic material with high depolarization temperature and high piezoelectric property, and a preparation method thereof, wherein the general chemical formula of the bismuth ferrite-based piezoelectric ceramic material is (1-x)(0.725BiFeO3-0.275BaTiO3)-xPbTiO3+0.8 mol% MnO2, and x is greater than or equal to 0.1 and less than or equal to 0.3. The preparation method comprises the following steps: mixing all metal oxide raw materials, sequentially carrying out ball milling, drying and presintering, mixing with a manganese source, carrying out secondary ball milling and drying, mixing with PVA, granulating, and carrying out compression molding to obtain a ceramic green body; and finally carrying out rubber discharging and sinteringon the ceramic green body to obtain the bismuth ferrite-based piezoelectric ceramic material. Compared with the prior art, the bismuth ferrite-based piezoelectric ceramic material disclosed by the invention has the advantages that the preparation method is simple, economic, practical and the like, and the prepared bismuth ferrite barium titanate-based piezoelectric ceramic has high Curie temperature, excellent temperature stability and relatively high piezoelectric constant, and shows a wide industrial application prospect.
本发明涉及一种高退极化温度、高压电性能的铁酸铋基压电陶瓷材料及其制备方法，其化学通式为(1‑x)(0.725BiFeO3‑0.275BaTiO3)‑xPbTiO3+0.8mol％MnO2，其中0.1≤x≤0.3；制备方法包括首先将各金属氧化物原料混合并依次进行球磨、干燥、预烧后，再与锰源混合并进行二次球磨与干燥，之后与PVA混合并进行造粒与压制成型后，得到陶瓷生坯；最后将陶瓷生坯进行排胶与烧结后，即得到铁酸铋基压电陶瓷材料。与现有技术相比，本发明具有制备方法简单、经济实用等优点，所制备的铁酸铋‑钛酸钡基压电陶瓷具有高居里温度、优异的温度稳定性以及较高的压电常数，表现出广阔的工业应用前景。
Bismuth ferrite-based piezoelectric ceramic material with high depolarization temperature and high piezoelectric property, and preparation method thereof
一种高退极化温度、高压电性能的铁酸铋基压电陶瓷材料及其制备方法
ZHAI JIWEI (Autor:in) / SHI YUNJING (Autor:in) / SHEN BO (Autor:in)
11.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2023
Bismuth ferrite-based high-temperature piezoelectric ceramic material and preparation method thereof
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
Bismuth ferrite-based leadless piezoelectric ceramic material and preparation method thereof
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2020