A new lead-free piezoelectrics of BiFeO3-BaTiO3 solid solution
Mardi 15 décembre 2015 14:00
- Duree : 1 heure
Lieu : LMGP – Phelma Minatec – Salle de séminaire, 2eme étage - 3 Parvis Louis Néel - Grenoble
Orateur : Won-Jeong KIM (Department of Physics, Changwon National University, KOREA)
Piezoelectric materials exhibit a direct electromechanical coupling ; mechanical stress could produce electricity and vice versa. These materials are useful for applications on many sensors and actuators. Furthermore, piezoelectrics can be used for electric generators from every day vibrations such as automobiles. One of the most famous and widely used piezoelectrics is PZT (Pb[ZrxTi1-x]O3 (0≤x≤1)). However, PZT contains an environmentally hazardous lead(Pb). It has been a long stand issue to find an alternative piezoelectrics to replace the lead contained PZT. A new Bi-based piezoelectrics has been found in the BiFeO3-BaTiO3 solid solution processed with a water quenching method. The BiFeO3-BaTiO3 based piezoelectrics exhibits better physical properties than PZT.
Contact : Michele.san-martin@grenoble-inp.fr
Discipline évènement : (Physique)
Entité organisatrice : (LMGP)
Nature évènement : (Séminaire)
Evènement répétitif : (Séminaire LMGP)
Site de l'évènement : Site Minatec
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