研究目的
Investigating the influence of volume fraction of piezo-ceramic on the thickness vibration characteristics of 1-3 piezoelectric composites.
研究成果
The resonant frequency increases with the increase of ceramic volume fraction. The conductance increases with ceramic volume fraction increasing, but decreases slightly when it reaches 0.9. The thickness electromechanical coupling factor increases rapidly with ceramic volume fraction when it is less than 0.4, tends to be stable when it is between 0.4 and 0.7, and slightly decreases when it is greater than 0.8.
研究不足
The study is limited to the thickness vibration mode of 1-3 piezoelectric composites and does not explore other vibration modes or composite structures.
1：Experimental Design and Method Selection:
Finite element analysis and simulation were used to study the relationship between vibration performance parameters and the ceramic volume fraction of composites.
2：Sample Selection and Data Sources:
Samples with volume fraction of
3：2 to 6 were prepared by cutting and filling. List of Experimental Equipment and Materials:
PZT-5A as the piezoelectric material, epoxy resin as the polymeric materials, and Agilent Impedance Analyzer (HP 4294A) for testing.
4：Experimental Procedures and Operational Workflow:
The samples were prepared using dice-and-fill technique, and their conductance curves were measured.
5：Data Analysis Methods:
The relationship between vibration performance parameters and the ceramic volume fraction was analyzed.
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