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Abstract
In this paper, studies on the preparation and properties of barium sodium titanate niobate and poly(vinylidenefluoride) (PVDF) bulk composites are reported. SEM images show ceramic particles incorporated into the PVDF matrix in a 0–3 connectivity. FTIR results reveal that BTNN was formed without undesirable phases and that the β-phase of polymer is present. Dielectric studies show a relaxor ferroelectric behavior with a real dielectric constant of ∼56 (300 K at 1 kHz) and a maximum dielectric loss of 7%. This value is the highest among those reported for PVDF-ceramic composites with 30% of ceramic phase in their matrices.
Additional information
Funding
This research was supported by the Brazilian funding agencies Fundação Araucária de Apoio ao Desenvolvimento Científico e Tecnológico do Paraná (10/2017 – PROPESP/UNICENTRO), CAPES (Procad 88881.068509/2014-01) and CNPq (procs. 309830/2017-6, 446565/2014-8, and 429687/2016-8) and Jaciele M Rosso and also thanks CAPES for the fellowship.