Introduction: Piezoelectric ceramics are a special type of material that has a piezoelectric effect, i.e., a charge distribution is generated when an external force or electric field is applied. Piezoelectric ceramics are widely used in sensors, acoustic devices, piezoelectric ceramic capacitors and other fields. In order to improve the performance of piezoelectric ceramics, laminated piezoceramic electrode structures are designed and manufactured.
1. Overview of the structure of laminated piezoelectric ceramic electrodes.
The tandem piezoelectric ceramic electrode structure refers to the structure of multilayer electrodes on the surface of the piezoelectric ceramic. This structure can increase the contact area between the electrode and the piezoelectric ceramic, improve the charge transfer efficiency between the electrode and the piezoelectric ceramic, and thus improve the performance of the piezoelectric ceramic.
2. The manufacturing process of the tandem piezoelectric ceramic electrode structure.
1.Preparation of piezoelectric ceramics.
Substrates for piezoelectric ceramics need to be prepared. Common piezoelectric ceramic materials include PZT (lead zirconate titanate), BATIO3 (barium titanate), etc. In the preparation process, solid-phase reaction, sol-gel method and other methods can be used. By controlling the parameters such as material ratio, sintering temperature and time, ceramic substrates with good piezoelectric properties are obtained.
2.Selection of electrode material.
The electrode material in the tandem piezoelectric ceramic electrode structure is usually selected with good conductivity and high temperature resistance. Common electrode materials are silver, copper, platinum, etc. The electrode material can form a thin film on the surface of the piezoelectric ceramic by sputtering, vacuum evaporation, etc.
3.Manufacture of electrodes.
The electrode material needs to be processed to prepare the electrode in the desired shape. Common processing methods include cutting, laser cutting, etc. Then, the electrodes are fixed on the surface of the piezoelectric ceramic. The electrodes can be firmly bonded to the piezo ceramics by glue or hot pressing.
4.Fabrication of laminated structures.
By repeating the above steps, the multilayer electrodes are fabricated on the surface of the piezoelectric ceramic. Each layer of electrodes needs to be spaced apart to avoid short circuits between the electrodes. By controlling the number of layers and the spacing, the performance of the laminated piezoelectric ceramic electrode structure can be adjusted.
3. Advantages of tandem piezoelectric ceramic electrode structure.
1.The contact area between the electrode and the piezoelectric ceramic is increased, and the charge transfer efficiency is increased.
2.Increase the conductive area of the electrode, reduce the resistance of the electrode, and improve the conductivity of the electrode.
3.The distribution of multilayer electrodes can be realized, and the overall performance of piezoelectric ceramics can be improved.
4.Reduce the electric field strength between the electrodes, reduce the charge leakage between the electrodes, and improve the efficiency of piezoelectric ceramics.
Conclusion: Tandem piezoelectric ceramic electrode structure is a design and manufacturing method that can improve the performance of piezoelectric ceramics. The properties of piezoelectric ceramics can be improved by preparing piezoelectric ceramic substrates, selecting suitable electrode materials, and fabricating electrodes and stacked structures. The tandem piezoelectric ceramic electrode structure is widely used in piezoelectric ceramic sensors, acoustic devices and other fields, providing excellent electrical properties for related applications. In future research, the manufacturing process can be further optimized to improve the performance and stability of the stacked piezoelectric ceramic electrode structure.