![]() ![]() Zhang, G., Li, Y., Tang, S., Thompson, R. Ferroelectric polymer/silver nanocomposites with high dielectric constant and high thermal conductivity. Structural insight in the interfacial effect in ferroelectric polymer nanocomposites. The selection of mechanical actuators based on performance indices. A review of shape memory alloy research, applications and opportunities. Crystalline structures and phase transition of the ferroelectric P(VDF-TrFE) copolymers, a neutron diffraction study. Electric field induced phase transitions in polymers: a novel mechanism for high speed energy storage. Electric‐field‐induced phase changes in poly(vinylidene fluoride). An all-organic composite actuator material with a high dielectric constant. Piezoelectric actuators and motors: materials, designs, and applications. Chirality-induced relaxor properties in ferroelectric polymers. Sensing and memorising liquids with polarity-interactive ferroelectric sound. Multilayered relaxor ferroelectric polymer actuators for low-voltage operation fabricated with an adhesion-mediated film transfer technique. Transparent flexible polymer actuator with enhanced output force enabled by conductive nanowires interlayer. Ultrahigh piezoelectricity in ferroelectric ceramics by design. Ferroelectric and electromechanical properties of poly(vinylidene-fluoride-trifluoroethylene-chlorotrifluoroethylene) terpolymer. Ferroelectric ceramics: materials and application issues. Origin of the high piezoelectric response in PbZr 1– xTi xO 3. Piezoelectric properties of lead zirconate-lead titanate solid-solution ceramics. Relaxor ferroelectric polymer exhibits ultrahigh electromechanical coupling at low electric field. Ferroelectric polymers exhibiting behaviour reminiscent of a morphotropic phase boundary. Giant electrostriction and relaxor ferroelectric behavior in electron-irradiated poly(vinylidene fluoride-trifluoroethylene) copolymer. Giant piezoelectricity in oxide thin films with nanopillar structure. A molecular perovskite solid solution with piezoelectricity stronger than lead zirconate titanate. Giant piezoelectricity of Sm-doped Pb(Mg 1/3Nb 2/3)O 3-PbTiO 3 single crystals. Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals. This approach overcomes the trade-off between mechanical modulus and electro-strains in conventional piezoelectric polymer composites and opens up an avenue for high-performance ferroelectric actuators. We demonstrate a strain of over 8% and an output mechanical energy density of 11.3 J cm −3 at an electric field of 40 MV m −1 in the composite, outperforming the benchmark relaxor single-crystal ferroelectrics. Here we report the use of electro-thermally induced ferroelectric phase transition in percolative ferroelectric polymer nanocomposites to achieve high strain performance in electric-field-driven actuation materials. However, their normalized elastic energy densities remain orders of magnitude smaller than those of piezoelectric ceramics and crystals, severely limiting their practical applications in soft actuators. Ferroelectric polymers exhibit a giant electric-field-induced strain (>4.0%), markedly exceeding the actuation strain (≤1.7%) of piezoelectric ceramics and crystals. The interconversion between electrical and mechanical energies is pivotal to ferroelectrics to enable their applications in transducers, actuators and sensors. ![]()
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