• BiFeO 3 particles were embedded in non-conducting non-piezoactive PVDF terpolymer. Dielectric and piezoelectric properties of -PVDF composite with different volume fraction studied. The charge voltage coefficients granular determined by using Yamada Poon model. is an interesting multiferroic material potential use sensors transducers. However, the high coercive field low dielectric strength t...

The behaviour of partial discharge inception voltage (PDIV), extinction (PDEV) and repetitive (RPDIV) as a function exposure/poling time under unipolar square wave excitations at atmospheric pressure (1013 mbar) is experimentally measured investigated. (PD) tests are performed on two commercially available insulated wires: Glass fibre Type II Polyether Ether Ketone (PEEK) I wires used in invert...

Magnetoelectric composites provide large enough room-temperature functional responses to enable a range of novel technologies, like uncooled high-sensitivity magnetic sensors. Magnetoelectricity in these appears as product property the piezoresponses two elastically coupled ferroic phases. Coefficients then depend not only on magnetostriction and piezoelectricity components, but also interface ...

changed under ambient condition for at least 40 h, time to which these measurements were carried out. To investigate the absorption behavior as a function of time, the absorption spectrum at 100 OC was taken at regular intervals over 40 h for poled/cured A204/DR1. An absorption peak at A, , = 508 nm existed before poling/curing. After poling/curing &shifta to 493 nm with a decrease of absorbanc...

Thermal poling was proven successful to induce second order nonlinear properties and concurrent modification of composition, structure and chemical reactivity in glasses. With current efforts to reduce devices sizes in components employing such attributes, means to control changes at the micrometer scale are needed. We present a micro-imprinting poling process to locally tailor surface properti...