Investigation of Electromechanical Properties on 3-D Printed Piezoelectric Composite Scaffold Structures
| Autor: | Frank Clemens, Miriam Bach, Andreas Geiger, Tutu Sebastian, Lucjan Kozielski, Tony Lusiola |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
BaTiO3
Technology Materials science Thermoplastic PZT 3D printing Fused filament fabrication fused filament fabrication (FFF) Article law.invention law thermoplastic processing General Materials Science Ceramic Composite material chemistry.chemical_classification Microscopy QC120-168.85 Fused deposition modeling business.industry QH201-278.5 Epoxy Engineering (General). Civil engineering (General) Piezoelectricity TK1-9971 transducer Transducer chemistry Descriptive and experimental mechanics visual_art visual_art.visual_art_medium material extrusion-based additive manufacturing (MEX) ferroelectric composites Electrical engineering. Electronics. Nuclear engineering TA1-2040 business fused deposition modeling (FDM) |
| Zdroj: | Materials, Vol 14, Iss 5927, p 5927 (2021) Materials Volume 14 Issue 20 |
| Popis: | Piezoelectric composites with 3-3 connectivity gathered attraction due to their potential application as an acoustic transducer in medical imaging, non-destructive testing, etc. In this contribution, piezoelectric composites were fabricated with a material extrusion-based additive manufacturing process (MEX), also well-known under the names fused deposition modeling (FDM), fused filament fabrication (FFF) or fused deposition ceramics (FDC). Thermoplastic filaments were used to achieve open and offset printed piezoelectric scaffold structures. Both scaffold structures were printed, debinded and sintered successfully using commercial PZT and BaTiO3 powder. For the first time, it could be demonstrated, that using the MEX processing method, closed pore ferroelectric structure can be achieved without pore-former additive. After ceramic processing, the PZT scaffold structures were impregnated with epoxy resin to convert them into composites with 3-3 connectivity. A series of composites with varying ceramic content were achieved by changing the infill parameter during the 3D printing process systematically, and their electromechanical properties were investigated using the electromechanical aix PES device. Also, the Figure of merit (FOM) of these composites was calculated to assess the potential of this material as a candidate for transducer applications. A maximum for the FOM at 25 vol.% of PZT could be observed in this study. |
| Databáze: | OpenAIRE |
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