Title :
Grain size effect on the induced piezoelectric properties of 0.9PMN-0.1PT ceramic
Author :
Wang, S.F. ; Kumar, U. ; Huebner, W. ; Marsh, P. ; Kankul, H. ; Oakley, C.G.
Author_Institution :
Pennsylvania State Univ., University Park, PA, USA
fDate :
30 Aug-2 Sep 1992
Abstract :
Lead magnesium niobate-lead titanate (Pb(Mg1/3Nb2/3)O3 PMN-PbTiO3 (PT) solid solutions have been widely researched to produce devices that can be used in low- and high-electric-field applications. For some applications, such as medical ultrasonic transducers, it is necessary to prepare the ceramic with high density and small average grain size. The effect of grain size on the low- and high-field properties of 0.9-PMN-0.10-PT ceramics is described in the present work. To prepare highly dense ceramic, vibratory and attrition milled powders were sintered between 1000 and 1250°C. The average grain sizes of the sintered ceramics varied from 0.7 to 3.5 μm. To understand the grain size effect, dielectric, pyroelectric, electrostrictive, and induced piezoelectric properties were studied
Keywords :
ceramics; dielectric hysteresis; dielectric losses; electrostriction; ferroelectric materials; grain size; lead compounds; magnesium compounds; permittivity; piezoelectric materials; pyroelectricity; sintering; solid solutions; PbMgO3NbO3-PbTiO3 solid solutions; attrition milled powders; average grain sizes; dielectric properties; electrostrictive properties; grain size effect; high-electric-field applications; induced piezoelectric properties; medical ultrasonic transducers; pyroelectric properties; sintered ceramics; Bioceramics; Ceramics; Grain size; Lead; Magnesium; Niobium; Powders; Solids; Titanium compounds; Ultrasonic transducers;
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.1992.300647
