Title :
The effects of excess PbO addition and composition variation on the processing and properties of tape cast PLZT RAINBOW actuators
Author :
Dausch, David E.
Author_Institution :
Nat. Res. Council, NASA Langley Res. Center, Hampton, VA, USA
Abstract :
High-displacement RAINBOW actuators were fabricated from tape cast PLZT 7/65/35 and 9/65/35 ceramics which were hatched with 0 to 5% excess PbO by weight. Fired densities of the starting ceramics were maximized with 3% excess PbO. It was found that the electromechanical characteristics of the RAINBOWs were more dependent on grain size than density. Actuator displacements of the 9/65/35 composition were enhanced by static loading, while 7/65/35 exhibited decreased displacements with load
Keywords :
casting; lanthanum compounds; lead compounds; piezoceramics; piezoelectric actuators; PLZT; PLZT RAINBOW actuator; PLZT-PbO; PbLaZrO3TiO3; PbLaZrO3TiO3-PbO; PbO addition; ceramic; composition; density; displacement; electromechanical characteristics; firing; grain size; tape casting; Actuators; Ceramics; Chemicals; Density measurement; Electrostriction; Grain size; NASA; Powders; Pressing; Tape casting;
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.1996.598138
