Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Piezoelectric ceramic material for power type ultrasonic transducer and preparation method of piezoelectric ceramic material
The invention discloses a piezoelectric ceramic material for a power type ultrasonic transducer and a preparation method of the piezoelectric ceramic material, and belongs to a piezoelectric ceramic material and a preparation method of the piezoelectric ceramic material. The structural general formula of the ceramic material is Pb (Zr1/2Ti1/2) x (Ni1/3Ta2/3) y (Mg1/3Nb2/3) 1-x-yO3 + wmol% A, wherein x is equal to 0.85 to 0.94, y is equal to 0.01 to 0.1, and z is equal to 0.05 to 2; and the modified element A is one or more of Ce, Co and W. The preparation method comprises the following steps: preparing materials according to the structural general formula, and then carrying out ball milling, drying, pre-sintering, secondary ball milling, drying, compression molding, sintering, silver printing and polarization. The ceramic material disclosed by the invention has the advantages of low dielectric loss, high piezoelectric constant, high electromechanical coupling coefficient and the like, and solves the problems of serious heating and short service life when the existing piezoelectric ceramic is used on a power type ultrasonic transducer. And the piezoelectric ceramic material can be completely applied to related piezoelectric ceramic components for power type transducers.
本发明公开了一种功率型超声换能器压电陶瓷材料及其制备方法，属于压电陶瓷材料及其制备方法；本发明陶瓷材料的结构通式为：Pb（Zr1/2Ti1/2）x（Ni1/3Ta2/3）y（Mg1/3Nb2/3）1‑x‑yO3+wmol%A；其中，x=0.85～0.94，y=0.01～0.1，z=0.05～2；改性元素A为Ce、Co、W中的一种或几种。本发明制备方法是按所述结构通式配料，然后球磨、烘干、预烧、二次球磨、烘干、压制成型、烧结印银、极化。本发明陶瓷材料具有介电损耗低、压电常数和机电耦合系数高等优点，克服了现有压电陶瓷在使用在功率型超声换能器上时发热严重，寿命低的问题。完全可以应用于功率型换能器用相关压电陶瓷元器件。
Piezoelectric ceramic material for power type ultrasonic transducer and preparation method of piezoelectric ceramic material
The invention discloses a piezoelectric ceramic material for a power type ultrasonic transducer and a preparation method of the piezoelectric ceramic material, and belongs to a piezoelectric ceramic material and a preparation method of the piezoelectric ceramic material. The structural general formula of the ceramic material is Pb (Zr1/2Ti1/2) x (Ni1/3Ta2/3) y (Mg1/3Nb2/3) 1-x-yO3 + wmol% A, wherein x is equal to 0.85 to 0.94, y is equal to 0.01 to 0.1, and z is equal to 0.05 to 2; and the modified element A is one or more of Ce, Co and W. The preparation method comprises the following steps: preparing materials according to the structural general formula, and then carrying out ball milling, drying, pre-sintering, secondary ball milling, drying, compression molding, sintering, silver printing and polarization. The ceramic material disclosed by the invention has the advantages of low dielectric loss, high piezoelectric constant, high electromechanical coupling coefficient and the like, and solves the problems of serious heating and short service life when the existing piezoelectric ceramic is used on a power type ultrasonic transducer. And the piezoelectric ceramic material can be completely applied to related piezoelectric ceramic components for power type transducers.
本发明公开了一种功率型超声换能器压电陶瓷材料及其制备方法，属于压电陶瓷材料及其制备方法；本发明陶瓷材料的结构通式为：Pb（Zr1/2Ti1/2）x（Ni1/3Ta2/3）y（Mg1/3Nb2/3）1‑x‑yO3+wmol%A；其中，x=0.85～0.94，y=0.01～0.1，z=0.05～2；改性元素A为Ce、Co、W中的一种或几种。本发明制备方法是按所述结构通式配料，然后球磨、烘干、预烧、二次球磨、烘干、压制成型、烧结印银、极化。本发明陶瓷材料具有介电损耗低、压电常数和机电耦合系数高等优点，克服了现有压电陶瓷在使用在功率型超声换能器上时发热严重，寿命低的问题。完全可以应用于功率型换能器用相关压电陶瓷元器件。
Piezoelectric ceramic material for power type ultrasonic transducer and preparation method of piezoelectric ceramic material
功率型超声换能器压电陶瓷材料及其制备方法
CHU TAO (Autor:in) / ZHANG YUANSONG (Autor:in) / LI ZHENGQUAN (Autor:in) / WANG LANHUA (Autor:in) / QIN JIE (Autor:in)
30.12.2022
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2024