Pre-stressed curved actuators consist of a piezoelectric ceramic (lead zirconate titanate or PZT) sandwiched between various substrates and other top layers. The substrates used in this study are stainless steel, and fiberglass. The top layers are made up of aluminum and carbon. Due to their enhanced strain capabilities, these pre-stressed piezoelectric devices are of interest in a variety of a...

Concept and Key Idea Photonic-bandgap microcavities in optical waveguides have demonstrated cavity resonances at wavelengths near 1.55 μm band, quality factors on the order of 300, and modal volume at 0.055 μm3 in high-index contrast Si/SiO2 waveguides and GaAs air-bridge waveguides. Applications include zero-threshold microlasers, filters and signal routers. For tunability in Si microphotonic ...

Piezoelectric materials are widely fabricated and investigated for potential applications in microelectromechanical systems as direct converters between mechanical electrical signals, where some show pyroelectric features involving thermo-electro-mechanical interactions. This study aimed to introduce a novel numerical technique predict the behaviors of piezoelectric structures, based on strong-...

In the present work, thermo-electro vibration of the piezoelectric nanoplates resting on the elastic foundations using nonlocal elasticity theory are considered. In-plane and transverse displacements of the nanoplate have been approximated by six different modified shear deformation plate theories considering transverse shear deformation effects and rotary inertia. Moreover, two new distributio...