Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to piezoelectric ceramic, a preparation method thereof and a piezoelectric device. The chemical formula of the piezoelectric ceramic is Pb [(Mn1/3Nb2/3) xZryTi1-x-y] O3 + m% PbO + n% Co2O3 + w% BiYO3, x is greater than or equal to 0 and less than or equal to 0.08, y is greater than or equal to 0.45 and less than or equal to 0.55, m is greater than or equal to 0 and less than or equal to 6.5, n is greater than or equal to 0 and less than or equal to 0.5, w is greater than or equal to 0 and less than or equal to 1, and x, y, m, n and w are element mole fractions. According to the piezoelectric ceramic provided by the technical scheme of the invention, by doping PbO and BiYO3, abundant liquid phases can be introduced, the sintering temperature of the ceramic is reduced, rapid growth of ceramic grains is inhibited, and rapid densification is realized; the doping of Co2O3 can effectively control the vacancy defect of the material and the number of abnormal grains. Experiments prove that the piezoelectric ceramic provided by the technical scheme of the invention has the characteristics of low cost, high compactness and high performance, and is beneficial to wide application.
本发明涉及一种压电陶瓷及其制备方法和压电器件。压电陶瓷的化学式为：Pb[(Mn1/3Nb2/3)xZryTi1‑x‑y]O3+m％PbO+n％Co2O3+w％BiYO3，其中，0≤x≤0.08，0.45≤y≤0.55，0≤m≤6.5，0≤n≤0.5，0≤w≤1，x、y、m、n和w为元素摩尔分数。本发明技术方案的压电陶瓷，通过掺入PbO和BiYO3可引入丰富的液相，降低陶瓷烧结温度，抑制陶瓷晶粒快速长大，并实现快速致密化；Co2O3的掺入可以有效控制材料空位缺陷和异常晶粒数量。经过试验验证，本发明技术方案的压电陶瓷具有低成本、高致密和高性能的特点，有利于广泛应用。
The invention relates to piezoelectric ceramic, a preparation method thereof and a piezoelectric device. The chemical formula of the piezoelectric ceramic is Pb [(Mn1/3Nb2/3) xZryTi1-x-y] O3 + m% PbO + n% Co2O3 + w% BiYO3, x is greater than or equal to 0 and less than or equal to 0.08, y is greater than or equal to 0.45 and less than or equal to 0.55, m is greater than or equal to 0 and less than or equal to 6.5, n is greater than or equal to 0 and less than or equal to 0.5, w is greater than or equal to 0 and less than or equal to 1, and x, y, m, n and w are element mole fractions. According to the piezoelectric ceramic provided by the technical scheme of the invention, by doping PbO and BiYO3, abundant liquid phases can be introduced, the sintering temperature of the ceramic is reduced, rapid growth of ceramic grains is inhibited, and rapid densification is realized; the doping of Co2O3 can effectively control the vacancy defect of the material and the number of abnormal grains. Experiments prove that the piezoelectric ceramic provided by the technical scheme of the invention has the characteristics of low cost, high compactness and high performance, and is beneficial to wide application.
本发明涉及一种压电陶瓷及其制备方法和压电器件。压电陶瓷的化学式为：Pb[(Mn1/3Nb2/3)xZryTi1‑x‑y]O3+m％PbO+n％Co2O3+w％BiYO3，其中，0≤x≤0.08，0.45≤y≤0.55，0≤m≤6.5，0≤n≤0.5，0≤w≤1，x、y、m、n和w为元素摩尔分数。本发明技术方案的压电陶瓷，通过掺入PbO和BiYO3可引入丰富的液相，降低陶瓷烧结温度，抑制陶瓷晶粒快速长大，并实现快速致密化；Co2O3的掺入可以有效控制材料空位缺陷和异常晶粒数量。经过试验验证，本发明技术方案的压电陶瓷具有低成本、高致密和高性能的特点，有利于广泛应用。
Piezoelectric ceramic, preparation method thereof and piezoelectric device
压电陶瓷及其制备方法和压电器件
18.10.2024
Patent
Elektronische Ressource
Chinesisch
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