Liu Qiyun, Zhou Jinjie, Jia Ziliang, Zhou Pengfei
School of Mechanical Engineering, North University of China, Taiyuan 030051, China.
Shanxi Key Laboratory of Intelligent Equipment Technology in Harsh Environment, Taiyuan 030051, China.
Micromachines (Basel). 2025 Mar 21;16(4):361. doi: 10.3390/mi16040361.
An epoxy/glass microbeads-based 1-3 piezoelectric composite is proposed, to enhance electromechanical conversion efficiency. Firstly, based on the series-parallel theory, the theoretical model is established. Secondly, the epoxy resin/glass microbeads-based 1-3 piezoelectric composite is simulated by finite element software. The effects of polymers with different acoustic impedances, the thicknesses of piezoelectric composites, and ceramic volume fractions are analyzed systematically. After parameter optimization, the epoxy/glass microbeads-based 1-3 piezoelectric composite is prepared. The experimental results agree well with the theoretical and simulation results. When the ceramic volume fraction is 60.0%, its electromechanical coupling factor is the largest, which is 0.714. Compared with the prepared traditional 1-3 piezoelectric composites with the same parameters, its electromechanical coupling factor is increased by 7.8%. Therefore, the epoxy/glass microbeads-based 1-3 piezoelectric composite can enhance the sensitivity and resolution of the transducers, which has potential advantages for improving the performance of transducers.
为提高机电转换效率，提出了一种基于环氧/玻璃微珠的1-3型压电复合材料。首先，基于串并联理论建立了理论模型。其次，利用有限元软件对基于环氧树脂/玻璃微珠的1-3型压电复合材料进行了模拟。系统分析了不同声阻抗聚合物、压电复合材料厚度和陶瓷体积分数的影响。经过参数优化，制备了基于环氧/玻璃微珠的1-3型压电复合材料。实验结果与理论和模拟结果吻合良好。当陶瓷体积分数为60.0%时，其机电耦合系数最大，为0.714。与制备的相同参数的传统1-3型压电复合材料相比，其机电耦合系数提高了7.8%。因此，基于环氧/玻璃微珠的1-3型压电复合材料可以提高换能器的灵敏度和分辨率，在改善换能器性能方面具有潜在优势。
