Lead-free Potassium Sodium Niobate ((KxNa1-x)NbO3 or KNN) has gained remarkable attention in the recent years, due to its high Curie temperature ( > 400˚C) providing broad temperature range for operation, and proficient piezoelectric and ferroelectric properties. This has prompted sincere research efforts in the evolution of lead-free piezoelectric materials which possess properties comparable to that of PZT. However, these materials contain lead which is toxic and poses serious threat to human life and environment. Lead-based piezoelectric materials such as Lead Zirconium Titanate (PZT) have been widely utilized in defence and industrial applications due to their high piezoelectric coefficient. Over the last few decades, piezoelectric thin films have been extensively explored for potential applications in non-linear optical devices, energy harvesters, memory devices, micro-electromechanical systems (MEMS) based transducers and actuators, etc. The benefits of direct integration and in-situ synthesis are shown. Arranging complex-shaped particles in three dimensions (3D) for application in health, energy and sensing is demonstrated through a 3D-printing approach. Those can be synthesized with simpler tools than clean-room technology but still offer a great variety of useful features. However, complex-shaped geometries and advanced functionalities are often more attributed to individual microparticles. Additive Manufacturing of Functional MicroparticlesĬlean-room technology offers a myriad of nano- and micron-sized integration possibilities for almost every material.
0 kommentar(er)
