Title :
Growth and improved properties of ternary piezoelectric single crystals in lead indium niobate-lead magnesium niobate-lead titanate system
Author :
Tian, Jian ; Han, Pengdi ; Carroll, James F. ; Payne, David A.
Author_Institution :
H. C. Mater. Corp., Bolingbrook, IL, USA
Abstract :
Ternary piezoelectric crystals Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 (PIN-PMN-PT) have improved thermal and electrical stability than binary PMN-PT. To better understand crystal system and optimize crystal properties, we systematically investigated crystal growth for compositions between the two binary end-members, PMN-PT and PIN-PT. The ternary system has a compositional window where crystals can be grown directly from stoichiometric melt. PIN-PMN-PT crystals exhibited excellent piezoelectric properties (e.g., k33 ~0.87-0.92, d33 ~1000-2200 pm/V). Higher PIN content further stabilized piezoelectric performance by ~40°C increase in TR/T and more than doubling EC (~7.0 kV/cm). Such improvements are important for applications at elevated temperature and/or high-drive conditions.
Keywords :
crystal growth from melt; lead compounds; piezoelectric materials; thermal stability; Pb(In0.5Nb0.5)O3-PMN-PbTiO3; binary end-members; compositional window; crystal growth; crystal properties; crystal system; electrical stability; high-drive conditions; lead indium niobate-lead magnesium niobate-lead titanate system; piezoelectric properties; stoichiometric melt; ternary piezoelectric single crystals; thermal stability; Chemicals; Crystals; Dielectric measurements; Indium; Magnesium; Plasma temperature; Strain measurement; Temperature measurement; Thermal stability; Titanium compounds; PIN-PMN-PT; coercive field; ternary crystals; thermal stability;
Conference_Titel :
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4389-5
Electronic_ISBN :
1948-5719
DOI :
10.1109/ULTSYM.2009.5441898
