Title :
Processing and structure-property relationships for fine grained PZT ceramics
Author :
Hackenberger, W.S. ; Kim, N. ; Randall, C.A. ; Cao, W. ; Shrout, T.R. ; Pickrell, D.P.
Author_Institution :
Mater. Res. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Submicron grain sized PZT-5A ceramics have been produced with properties comparable to conventional coarse grained material. The degradation in dielectric and piezoelectric properties with decreasing grain size was compensated with a new dopant strategy. This made the materials piezoelectrically softer compensating for reductions in poling efficiency. The submicron grain sized material has been shown to be superior to coarse grained ceramic during fine scale dicing operations
Keywords :
dielectric hysteresis; dielectric losses; dielectric polarisation; ferroelectric Curie temperature; grain size; lead compounds; permittivity; piezoceramics; powder technology; sintering; B-site precursor calcination; Curie temperature; PZT; PZT-5A ceramics; PbZrO3TiO3; coercive field; dielectric constant; dielectric loss; dopant strategy; fine grained PZT ceramics; fine scale dicing operations; high energy milling; piezoelectric properties; piezoelectric softness; planar coupling coefficient; poling efficiency; processing; saturation polarization; sintering profiles; structure-property relationships; submicron grain size; Ceramics; Degradation; Dielectric materials; Educational institutions; Grain size; Laboratories; Piezoelectric materials; Piezoelectric polarization; Piezoelectricity; Strain measurement;
Conference_Titel :
Applications of Ferroelectrics, 1996. ISAF '96., Proceedings of the Tenth IEEE International Symposium on
Conference_Location :
East Brunswick, NJ
Print_ISBN :
0-7803-3355-1
DOI :
10.1109/ISAF.1996.598172
