Premium
Electromechanical Testing and Modeling of a Pb(Mg 1/3 Nb 2/3 )O 3 ‐PbTiO 3 ‐BaTiO 3 Relaxor Ferroelectric
Author(s) -
Brown Steve A.,
Hom Craig L.,
Massuda Mona,
Prodey Jacqueline D.,
Bridger Keith,
Shankar Natarajan,
Winzer Stephen R.
Publication year - 1996
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1996.tb08972.x
Subject(s) - ferroelectricity , materials science , electric field , modulus , condensed matter physics , ceramic , composite material , young's modulus , polarization (electrochemistry) , relaxor ferroelectric , elastic modulus , dielectric , mineralogy , physics , chemistry , optoelectronics , quantum mechanics
Compressive prestress effects on the electrical and mechanical properties of relaxor ferroelectric materials were studied as a function of temperature for several formulations of Pb(Mg 1/3 Nb 2/3 )O 3 ‐PbTiO 3 ‐BaTiO 3 (PMN‐PT‐BT) ceramics. Experimentally measured polarization and strain, induced by an ac electric field, decreased as compressive stress increased. Effective Young's moduli also were measured under constant dc electric fields. A significant decrease in modulus was observed with increasing field. The prestress and modulus experiments were modeled analytically using a proposed relaxor ferroelectric constitutive law. In general, excellent agreement between the model and experiments was obtained, indicating that the model accurately predicted the coupled behavior of this relaxor ferroelectric material.