Structural design and properties of fine scale 2-2-2 PZT/epoxy piezoelectric composites for high frequency application
| Autor: | Wenkang Zhang, Dongyu Xu, Guangpeng Gao, Hongchao Xu, Shanling Yi |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Electromechanical coupling coefficient Materials science Process Chemistry and Technology Composite number Relative permittivity 02 engineering and technology Dielectric Epoxy 021001 nanoscience & nanotechnology 01 natural sciences Piezoelectricity Surfaces Coatings and Films Electronic Optical and Magnetic Materials Phase (matter) visual_art 0103 physical sciences Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Composite material 0210 nano-technology Constant (mathematics) |
| Zdroj: | Ceramics International. 44:10940-10944 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2018.03.165 |
| Popis: | A kind of fine scale 2-2-2 PZT/epoxy piezoelectric composites consisting of PZT phase of uniform and Gaussian distribution were designed and prepared by cutting and filling method. The effects of thickness parameter on piezoelectric, dielectric and electromechanical coupling properties of the piezoelectric materials were investigated. The results show that piezoelectric composites exhibit large piezoelectric voltage constant and thickness electromechanical coupling coefficient. The relative permittivity, piezoelectric strain constant and planner electromechanical coupling coefficient increase with increasing the thickness of supporting base, and the piezoelectric voltage constant and thickness electromechanical coupling coefficient show the opposite variation. The Gaussian PZT/epoxy composite has larger piezoelectric voltage constant and thickness electromechanical coupling coefficient than the uniform PZT/epoxy composite. |
| Databáze: | OpenAIRE |
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