Microstructure and Electrical Properties of Barium Titanate Three-dimensional Composites
The mutual conversion of mechanical energy and electrical energy could be realized by piezoelectric materials.In this study,barium titanate(BaTiO3,BT)functional ceramic materials with piezoelectric properties were fabricated into a three-dimensional structure by means of additive manufacturing.By comparing the dielectric spectrum test results of PDMS,BT/PDMS and three-dimensional(BT)/PDMS flexible composites,it was found that the three-dimensional structure helps to enhance the dielectric properties of the composites.Additionally,the output voltages of the above were compared under a certain cyclic pressure,indicating that the three-dimensional structure significantly increased the output voltage of the composite.And the establishment of an internal potential field after polarization raised the output voltage of 3D-BT/PDMS to 250 mV.Consequently,the flexible 3D-BT/PDMS composite exhibits excellent electrical energy conversion capabilities and holds tremendous application potential in fields such as flexible capacitors and sensors.
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