Effect of dopants on electrical properties of BCT-BZT lead free piezo ceramics: a review
B. D. Sahoo, T. S. Thejas, E. D. Politova, P. K. Panda
Abstract
Lead free piezo materials are becoming popular as the world is conscious about toxicity of PbO present in PZT. As a result, lot of R&D efforts are made in last two decades to find out suitable lead free piezo ceramics as effective as PZT. There are many lead free piezo systems explored. Among them, BZT-BCT is more promising due to its high piezoelectric coefficients. This system is well researched by modifying its structure with a large number of dopants. In this paper, an effort has been made to review the effect of various dopants on electrical properties of BCT-BZT systems.
Topics & Concepts
DopantMaterials sciencePiezoelectricityLead (geology)CeramicEngineering physicsOptoelectronicsDopingComposite materialGeomorphologyEngineeringGeologyFerroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesDielectric materials and actuators