High Performance of Electroacoustic Piezoelectric Ceramic Transducers

• Authors: M. Abd El-Ati , M. Mosaad , B. El-Baradie
• Languages of publication: EN

Abstracts

EN

Lead zirconate-titanate containing 1 wt % niobium with different Zr/Ti ratios compositions were studied. A pronounced increase in densification during sintering process occurred near tetragonal-rhombohedral phase. Dielectric constant of polarized and unpolarized samples was studied. The rotation of all 90° domains to their original positions caused the more looseness of Ti^{4+} and Zr^{4+} in the octahedral configuration leading to greater polarization in the tetragonal structure, thus leading to, higher dielectric constant. Near the phase change, the minimum resonance frequency caused the minimum values of ultrasonic waves, which were emitted from the edge of the polarized ceramic transducers.

Keywords

EN

43.35.+d; 77.60.+v

Discipline

• 43.35.+d: Ultrasonics, quantum acoustics, and physical effects of sound

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1992
• Volume: 81
• Issue: 4-5
• Pages: 527-533

Dates

published

1992-04

received

1991-12-03

(unknown)

1992-03-06

Contributors

author

M. Abd El-Ati

• Physics Department, Faculty of Science, Tanta University, Tanta, Egypt

author

M. Mosaad

• Physics Department, Faculty of Education, Kafr El-Sheikh, Egypt

author

B. El-Baradie

• Physics Department, Faculty of Science, Tanta University, Tanta, Egypt

Identifiers

DOI

10.12693/APhysPolA.81.527