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Preparation method of hard piezoelectric ceramic material
The invention belongs to the technical field of piezoelectric ceramic materials, and particularly relates to a preparation method of a hard piezoelectric ceramic material. The piezoelectric ceramic material prepared by carrying out primary mixing, filter pressing, drying and briquetting, presintering synthesis, secondary mixing, spray granulation, molding, plastic removal, sintering, silver electrode coating and air polarization treatment on the ingredients belongs to hard piezoelectric ceramic, and the ceramic has the advantages of high dielectric constant (up to 1900), high electromechanical coupling coefficient (up to 0.66), mechanical quality factor (Qm) (up to 1300), and good mechanical property. The prepared piezoelectric ceramic material has the characteristics of simple preparation process and low dielectric loss, can obviously improve the use effect, is good in repeatability and stability, and is suitable for batch production, so that the piezoelectric ceramic material can be applied to the fields of ultrasonic cleaning, ultrasonic atomization, electronic component manufacturing and the like on a large scale.
本发明属于压电陶瓷材料技术领域，具体涉及硬性压电陶瓷材料的制备方法。本发明将配料经过一次混料、压滤、烘干压块、预烧合成、二次混料、喷雾造粒、成型、排塑、烧结、被银电极和空气极化处理后，制备的压电陶瓷材料属于硬性压电陶瓷，该陶瓷具有介电常数高，可达1900，机电耦合系数高，可达0.66，机械品质因数Qm可达1300，介电损耗低的特点，能够显著提高压电陶瓷材料的使用效果，重复性，稳定性好，适合批量性生产，从而可大批量用于超声清洗，超声雾化，电子元器件制造等领域。
Preparation method of hard piezoelectric ceramic material
The invention belongs to the technical field of piezoelectric ceramic materials, and particularly relates to a preparation method of a hard piezoelectric ceramic material. The piezoelectric ceramic material prepared by carrying out primary mixing, filter pressing, drying and briquetting, presintering synthesis, secondary mixing, spray granulation, molding, plastic removal, sintering, silver electrode coating and air polarization treatment on the ingredients belongs to hard piezoelectric ceramic, and the ceramic has the advantages of high dielectric constant (up to 1900), high electromechanical coupling coefficient (up to 0.66), mechanical quality factor (Qm) (up to 1300), and good mechanical property. The prepared piezoelectric ceramic material has the characteristics of simple preparation process and low dielectric loss, can obviously improve the use effect, is good in repeatability and stability, and is suitable for batch production, so that the piezoelectric ceramic material can be applied to the fields of ultrasonic cleaning, ultrasonic atomization, electronic component manufacturing and the like on a large scale.
本发明属于压电陶瓷材料技术领域，具体涉及硬性压电陶瓷材料的制备方法。本发明将配料经过一次混料、压滤、烘干压块、预烧合成、二次混料、喷雾造粒、成型、排塑、烧结、被银电极和空气极化处理后，制备的压电陶瓷材料属于硬性压电陶瓷，该陶瓷具有介电常数高，可达1900，机电耦合系数高，可达0.66，机械品质因数Qm可达1300，介电损耗低的特点，能够显著提高压电陶瓷材料的使用效果，重复性，稳定性好，适合批量性生产，从而可大批量用于超声清洗，超声雾化，电子元器件制造等领域。
Preparation method of hard piezoelectric ceramic material
硬性压电陶瓷材料的制备方法
TIAN DEHUI (Autor:in)
29.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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