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<p>Type 3–2 ceramic-air composites are improved from the structure of type 1–3 piezoelectric composites. Type 3–2 piezoelectric materials are made of PZT-5A and air composites. The effect of piezoelectric ceramic volume share on vibration patterns, electromechanical coupling coefficients, acoustic impedance of type 3–2 ceramic-air composites was analyzed using ANSYS finite element simulation software. The electromechanical coupling coefficient of the type 3–2 piezoelectric composites was found to be maintained at 0.65, while the acoustic impedance increased from 18.1MRaly to 20.3MRaly with the increase of the ceramic volume percentage. To validate the simulated data, three sets of test samples with different ceramic volume percentages were prepared, and the experimental and simulated data were found to be essentially identical upon comparison.</p>

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Effect of ceramic volume fraction on 3–2 type composites

  • 期刊论文

  • 发表日期：

    2025年2月20日

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  • Sujie Jing,
  • Hongwei Wang,
  • Zhaoxian Yu

摘要

Type 3–2 ceramic-air composites are improved from the structure of type 1–3 piezoelectric composites. Type 3–2 piezoelectric materials are made of PZT-5A and air composites. The effect of piezoelectric ceramic volume share on vibration patterns, electromechanical coupling coefficients, acoustic impedance of type 3–2 ceramic-air composites was analyzed using ANSYS finite element simulation software. The electromechanical coupling coefficient of the type 3–2 piezoelectric composites was found to be maintained at 0.65, while the acoustic impedance increased from 18.1MRaly to 20.3MRaly with the increase of the ceramic volume percentage. To validate the simulated data, three sets of test samples with different ceramic volume percentages were prepared, and the experimental and simulated data were found to be essentially identical upon comparison.