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Lead-free bismuth ferrite-based piezoelectric ceramic material as well as preparation method and application thereof
The invention belongs to the technical field of functional ceramics, and relates to a lead-free bismuth ferrite-based piezoelectric ceramic material as well as a preparation method and application thereof, the chemical formula of the piezoelectric ceramic material is 0.7 Bi < 1.03 > FeO < 3-x > Bi < 0.5 > K < 0.5 > TiO < 3-(0.3-x) > BaTiO < 3 + 0.5 mol% MnO < 2 >, x is equal to 0-0.015, and the piezoelectric ceramic material can be used for a piezoelectric energy collector or an ultrasonic transducer; the preparation method comprises the following steps: mixing a bismuth source, an iron source, a barium source, a titanium source and a potassium source, carrying out ball milling, carrying out primary calcination, mixing with MnO2, carrying out ball milling, carrying out secondary calcination, carrying out ball milling, granulating, carrying out compression molding, dumping and sintering. Compared with the prior art, the lead-free piezoelectric ceramic material prepared by a traditional solid-phase sintering method has the characteristics of high Curie temperature, excellent piezoelectric property and small leakage current, and is of great significance to preparation of high-performance and high-Curie-temperature lead-free piezoelectric materials.
本发明属于功能陶瓷技术领域，涉及一种无铅铁酸铋基压电陶瓷材料及其制备方法与应用，压电陶瓷材料的化学式为0.7Bi1.03FeO3‑xBi0.5K0.5TiO3‑(0.3‑x)BaTiO3+0.5mol％MnO2，其中x＝0‑0.015，可用于压电能量采集器或超声换能器；制备方法包括：将铋源、铁源、钡源、钛源、钾源混合球磨、一次煅烧，与MnO2混合球磨、二次煅烧、球磨、造粒、压制成型、排胶、烧结，得到。与现有技术相比，本发明通过传统固相烧结法制备无铅压电陶瓷材料，其具有居里温度高、压电性能优异、漏电流小的特性，对于制备高性能高居里温度无铅压电材料具有非常重要的意义。
Lead-free bismuth ferrite-based piezoelectric ceramic material as well as preparation method and application thereof
The invention belongs to the technical field of functional ceramics, and relates to a lead-free bismuth ferrite-based piezoelectric ceramic material as well as a preparation method and application thereof, the chemical formula of the piezoelectric ceramic material is 0.7 Bi < 1.03 > FeO < 3-x > Bi < 0.5 > K < 0.5 > TiO < 3-(0.3-x) > BaTiO < 3 + 0.5 mol% MnO < 2 >, x is equal to 0-0.015, and the piezoelectric ceramic material can be used for a piezoelectric energy collector or an ultrasonic transducer; the preparation method comprises the following steps: mixing a bismuth source, an iron source, a barium source, a titanium source and a potassium source, carrying out ball milling, carrying out primary calcination, mixing with MnO2, carrying out ball milling, carrying out secondary calcination, carrying out ball milling, granulating, carrying out compression molding, dumping and sintering. Compared with the prior art, the lead-free piezoelectric ceramic material prepared by a traditional solid-phase sintering method has the characteristics of high Curie temperature, excellent piezoelectric property and small leakage current, and is of great significance to preparation of high-performance and high-Curie-temperature lead-free piezoelectric materials.
本发明属于功能陶瓷技术领域，涉及一种无铅铁酸铋基压电陶瓷材料及其制备方法与应用，压电陶瓷材料的化学式为0.7Bi1.03FeO3‑xBi0.5K0.5TiO3‑(0.3‑x)BaTiO3+0.5mol％MnO2，其中x＝0‑0.015，可用于压电能量采集器或超声换能器；制备方法包括：将铋源、铁源、钡源、钛源、钾源混合球磨、一次煅烧，与MnO2混合球磨、二次煅烧、球磨、造粒、压制成型、排胶、烧结，得到。与现有技术相比，本发明通过传统固相烧结法制备无铅压电陶瓷材料，其具有居里温度高、压电性能优异、漏电流小的特性，对于制备高性能高居里温度无铅压电材料具有非常重要的意义。
Lead-free bismuth ferrite-based piezoelectric ceramic material as well as preparation method and application thereof
一种无铅铁酸铋基压电陶瓷材料及其制备方法与应用
SHEN BO (author) / LIN JIMIN (author) / ZHAI JIWEI (author)
2024-07-26
Patent
Electronic Resource
Chinese
BISMUTH-FERRITE-BASED LEAD-FREE PIEZOELECTRIC CERAMIC MATERIAL AND PREPARATION METHOD THEREFOR
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