Fabrication and investigation of BCZT/epoxy lead-free piezoelectric composites with spiral structure

A novel BCZT ceramic/epoxy resin composite with spiral structure was fabricated by a roll forming-curling method, the composite was consist of spiral ceramic rings and epoxy resin. The piezoelectric ceramic is in parallel with the polymer, and the polymer is filled continuously between the connected ceramic rings. The new connection mode can ensure that the ceramic phase is interpenetrated in both thickness and radial dimensions, and the properties of the composites are improved.239