论文信息 - Role of 90° domains on the electromechanical anisotropy of ca-modified PbTiO3 ceramics

Role of 90° domains on the electromechanical anisotropy of ca-modified PbTiO3 ceramics

Abstract New data of 90° domain reorientation on Ca-modified lead titanate ceramics obtained from XRD and thermal expansion measurements are reported. Results confirm that microstructure and poling treatment that favor a relatively high percentage of 90° domains reoriented (N(90°) = 10.9%) are needed to have ceramics with zero planar coupling factor (KP = 0).

L. Pardo | A. González | J. Frutos | J. Mendiola

[1] L. Pardo,et al. Ferropiezoelectricity of calcium modified lead titanate ceramics , 1987 .

[2] K. Nejezchleb,et al. The effect of grain size on the properties of piezoceramics in the system PbMg1/3Nb2/3O3−PbTiO3−PbZrO3 , 1987 .

[3] L. Pardo,et al. A XRD study of 90° domains in tetragonal PLZT uncer poling , 1984 .

[4] C. Nakaya,et al. Sm-Substituted Lead Titanate Ceramics for High Frequency Ultrasonic Probes , 1983 .

[5] Hiroshi Takeuchi,et al. Electromechanical properties of (Pb, Ln) (Ti, Mn) O3 ceramics (Ln = rare earths) , 1982 .

[6] G. Arlt,et al. Complex elastic, dielectric and piezoelectric constants by domain wall damping in ferroelectric ceramics , 1980 .