Print Email Facebook Twitter Flexible Lead-Free Piezoelectric Composite Materials for Energy Harvesting Applications Title Flexible Lead-Free Piezoelectric Composite Materials for Energy Harvesting Applications Author van Kempen, S.E. Khanbareh, H. Groen, P. Hol, J.M.A.M. van der Zwaag, S. Publication year 2020 Abstract A novel method based on the Virtual Particle Mori–Tanaka (VPMT) is developed to predict the effective electro-elastic properties, d33 and g33, of structured piezoelectric particulate composites with improved accuracy by means of a single parameter related to the spatial distribution of imperfectly aligned rod-like PZT particles. The VPMT method is found to have excellent prediction capabilities for idealized particle configurations. Several new correction functions are presented to capture the drop in piezoelectric composite’s electro-elastic properties as a function of topological imperfections. These imperfections are related to longitudinal and lateral inter-particle spacings and the topology of the chain like structures themselves. The functions are evaluated in detail and show physically consistent behaviour. Subject PiezoelectricFunctional compositeTopological imperfectionStructured compositesAlkaline niobatesDielectrophoresisEnergy harvestingLead-free piezoelectric materialsQuasi 1–3 compositesIndustrial Innovation To reference this document use: http://resolver.tudelft.nl/uuid:5cafb5c5-62b5-4042-88f0-b559a6aad5aa DOI https://doi.org/10.1088/2515-7639/ab50f8 TNO identifier 956174 Publisher IOP Science ISSN 2515-7639 Source Journal of Physics: Materials, 3 (3) Document type article Files PDF kempen-2020-effect.pdf