PVDF-PZT Composite Films for Transducer Applications

作者：Jain Anjana^*; Kumar S Jayanth; Kumar M Ramesh; Ganesh A Sri; Srikanth S

来源：Mechanics of Advanced Materials and Structures, 2014, 21(3): 181-186.

DOI：10.1080/15376494.2013.834094

• PVDF-PZT
• piezoelectricity
• sensors
• X-ray diffraction
• SEM
• mechanical properties

Piezoelectric polymer-ceramic composites are promising materials for transducer applications. PVDF-PZT composite films have been developed with different weight fraction and particle size of PZT using a solvent cast method. Films are investigated using X-ray diffraction technique, scanning electron microscopy, Fourier transformed infrared spectroscopy, and differential scanning calorimetry to study crystal structural changes, distribution of particles within the polymer matrix, the influence of these particles at the molecular level, and the changes induced in the melting transition and in the degree of crystallinity of the composites, respectively. The variation in these properties as a function of weight fraction (10-50%) and particle size (1m and approximate to 25m) of PZT has also been investigated. The composite films are tested for their application as acoustic emission (AE) sensor.

• 出版日期2014-3-16