Title :
Theoretical equations for dielectric, elastic and piezoelectric constants of diphasic composite changing its connectivity from 3-0 to 0-3 via 3-3
Author_Institution :
NTK Tech. Ceramics Div., NGK Spark Plug Co. Ltd., Nagoya, Japan
Abstract :
Theoretical equations for the dielectric, elastic and piezoelectric constants of a diphasic composite changing its connectivity from 3-0 (or 0-3) to 3-3 are obtained based on a model combining cubes ( 3-0 or 0-3) and 3-3 models. This theory is applied to the experimental results for the dielectric constant of a Pb(Mg1/3 Nbr2/3)O3-pyrochlore phase mixture and for dielectric, elastic and piezoelectric constants of porous PZT ceramics, where good agreement between experimental and theoretical results is observed
Keywords :
composite materials; elastic constants; lead compounds; permittivity; piezoceramics; piezoelectric materials; porous materials; PMN; PZT; Pb(Mg13/Nbr23/)O3-pyrochlore phase mixture; PbMgO3NbO3; PbZrO3TiO3; connectivity; dielectric constants; diphasic composite; elastic constants; piezoelectric constants; porous PZT ceramics; Ceramics; Dielectric constant; Dielectric losses; Equations; Geometry; Grain size; Plugs; Solid modeling; Sparks;
Conference_Titel :
Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on
Conference_Location :
University Park, PA
Print_ISBN :
0-7803-1847-1
DOI :
10.1109/ISAF.1994.522334
