Actuator applications of piezoelectric/electrostrictive ceramics.

Recent Progress on BaTiO3-Based Piezoelectric Ceramics for Actuator Applications

Due to issues with Pb toxicity, there is an urgent need for high performance Pb-free alternatives to Pb-based piezoelectric ceramics. Although pure BaTiO3 material exhibits fairly low piezoelectric coefficients, further designing of such a material system greatly enhances the piezoelectric response by means of domain engineering, defects engineering, as well as phase boundary engineering. Espec...

Characterization of PLZT Ceramics for Optical Sensor and Actuator Devices

Ceramics in Environmental Applications

ABSTUCT Environmental pollution by vehicles, turbines and aircrafts has enormously increased in the last decade. New generation lean-burn combustion engines which are more effective and q u i r e less fuel consumption will raise the emission of nitrogen oxides even more. Thus, especially in urban areas, more stringed environmental regulations are to release which can only be met by development ...

Orthopedic applications of silicon nitride ceramics.

Silicon nitride (Si(3)N(4)) is a ceramic material developed for industrial applications that demand high strength and fracture resistance under extreme operating conditions. Recently, Si(3)N(4) has been used as an orthopedic biomaterial, to promote bone fusion in spinal surgery and to develop bearings that can improve the wear and longevity of prosthetic hip and knee joints. Si(3)N(4) has been ...

Pyroelectric Ceramics for Infrared Detection Applications

Pyroelectric and dielectric properties of modified PZT and PZ have been studied for their use in infrared detectors. Various material figure-of-merits for their use in infrared detector are calculated including when the pyroelectric element is placed on heat-sink condition. The results are compared with exiting candidate materials.