Enhanced piezoelectric activity and temperature stability of [1 1 1]-oriented orthorhombic 0.68Pb(Mg1/3Nb2/3)O 3-0.32PbTiO3 single crystals by domain size engineering
RIS ID
106055
Abstract
The dielectric and piezoelectric properties of [1 1 1]-oriented orthorhombic Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) single crystals (3O multi-domain state) with various domain sizes were investigated by poling control. The free dielectric permittivity (ε33T/ε0) and longitudinal piezoelectric coefficient (d33) were 6400 and 900 pC N-1, respectively, for samples with domain sizes of ∼2 μm, nearly twice that of ∼20 μm. Together with good temperature stability (Δd33/d33(25C) <8%) up to the orthorhombic-tetragonal phase transition temperature, the "3O" PMN-PT crystals with fine domain structures are promising candidate for sensors and transducers. 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Publication Details
Shen, Z., Tang, Y., Zhang, S., Luo, J., Li, Y. & Shrout, T. R. (2014). Enhanced piezoelectric activity and temperature stability of [1 1 1]-oriented orthorhombic 0.68Pb(Mg1/3Nb2/3)O 3-0.32PbTiO3 single crystals by domain size engineering. Scripta Materialia, 72-73 17-20.