New Effects in 1–3-Type Composites Based on Relaxor-Ferroelectrics Single Crystals

摘要: Two effects of the matrix subsystem on piezoelectric performance and hydrostatic parameters are first studied in novel 1–0–3 composites that contain relaxor-ferroelectric single-crystal rods surrounded by a ferroelectric ceramic/polymer with 0–3 connectivity. First, influence mutual orientation poling direction ceramic components properties composite is discussed to demonstrate advantages concerned high large anisotropy squared figures merit. In 0.67Pb(Mg1/3Nb2/3)O3 − 0.33PbTiO3 single crystal/(Pb1–x Ca x )TiO3 ceramic/araldite = 0.20–0.25, values max \(g_{h}^{*}\) ~ 102 mV · m/N max(\(d_{h}^{*}\) \(g_{h}^{*}\)) 10−11 Pa−1 achieved at specific volume-fraction rotation-angle ranges due new effect presence highly anisotropic matrix. Second, aspect ratio inclusions based SCs studied. this case, elastic plays key role forming effective composite. The can be used sensor, energy-harvesting hydrophone applications.