Premium
High, Purely Electrostrictive Strain in Lead‐Free Dielectrics
Author(s) -
Ang C.,
Yu Z.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200500951
Subject(s) - electrostriction , materials science , dielectric , polarization (electrochemistry) , lead (geology) , composite material , strain (injury) , hysteresis , condensed matter physics , piezoelectricity , optoelectronics , physics , chemistry , medicine , geomorphology , geology
A high electrostrictive strain (∼0.1%) with hysteresis‐free behavior is observed in (Sr,Na,Bi)TiO 3 solid solutions. Its strain versus polarization ( P ) completely follows the quadratic relation (see Figure), indicating a purely electrostrictive effect with an electrostrictive coefficient Q 11 of 0.02 m 4 C –2 . These properties of this environmentally friendly lead‐free material are comparable with those of the currently used lead‐containing materials.