Title :
Effective electromechanical properties of some Pb(Mg1/3Nb2/3)O3-PbTiO3 -(Ba,Sr)TiO3 ceramics
Author :
Pilgrim, S.M. ; Bailey, A.E. ; Massuda, M. ; Prodey, J.D. ; Sutherland, A.E.
Author_Institution :
Martin Marietta Labs., Baltimore, MD, USA
fDate :
30 Aug-2 Sep 1992
Abstract :
A number of Pb(Mg1/3Nb2/3)O3-based materials were characterized to determine the effects of temperature on their induced strain and hysteresis properties. Simultaneous determination of the transverse and longitudinal properties allows the calculation of both an effective Poisson ratio and an effective hydrostatic d coefficient. One composition showed significant variation in the effective Poisson ratio (0.28 to 0.40) across the temperature interval 0 to 40°C. The large, effective hydrostatic coefficients (up to 300 pC/N), combined with the high permittivity of the materials, indicate that these materials have potential for use as high-sensitivity hydrostatic sensors
Keywords :
Poisson ratio; X-ray diffraction examination of materials; barium compounds; ceramics; dielectric hysteresis; dielectric losses; electrostriction; ferroelectric materials; lead compounds; magnesium compounds; piezoelectric materials; strontium compounds; PbMgO3NbO3-PbTiO3-(BaSr)TiO3 ceramics; effective Poisson ratio; effective hydrostatic coefficients; electromechanical properties; electrostrictive ceramics; high-sensitivity hydrostatic sensors; hysteresis properties; induced strain properties; longitudinal properties; permittivity; temperature interval; transverse properties; Capacitive sensors; Ceramics; Dielectric materials; Electrostriction; Lead; Niobium; Permittivity; Piezoelectric materials; Temperature dependence; Titanium compounds;
Conference_Titel :
Applications of Ferroelectrics, 1992. ISAF '92., Proceedings of the Eighth IEEE International Symposium on
Conference_Location :
Greenville, SC
Print_ISBN :
0-7803-0465-9
DOI :
10.1109/ISAF.1992.300648
