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| Content Provider | IET Digital Library |
|---|---|
| Author | Ohashi, Y. Kudo, T. Yokota, Y. Shoji, Y. Kurosawa, S. Kamada, K. Yoshikawa, A. |
| Abstract | A full set of acoustical physical constants was determined for Ca3TaGa1.5Al1.5Si2O14 (CTGAS) single crystal from bulk wave velocities measured by the ultrasonic micro-spectroscopy method. Several plate specimens were cut perpendicular to the X-, Y-, Z-, 35.25°Y-, and 139.74°Y-directions from a CTGAS single crystal ingot grown by Czochralski technique. Following measurements of dielectric constants and density, elastic constants, piezoelectric constants, and their temperature coefficients were determined from longitudinal wave and shear wave velocities measured for the CTGAS specimens at around room temperature. It was demonstrated that the as found constants could provide calculation accuracy within ±0.15% in leaky surface acoustic wave velocity. The determined constants were used for numerical calculation of the cut angle, at which the temperature coefficient of shear wave velocity becomes zero. This angle corresponded to 147.9°Y-cut substrate that had electromechanical coupling factor of k 2 = 3.2%. This parameter is about four times greater than that of AT-cut α-quartz. |
| Starting Page | 1957 |
| Ending Page | 1958 |
| Page Count | 2 |
| ISSN | 00135194 |
| Volume Number | 51 |
| e-ISSN | 1350911X |
| Issue Number | Issue 24, Nov (2015) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/51/24 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2015.2693 |
| Journal | Electronics Letters |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Acoustic Property of Solids Acoustical Physical Constants Aluminium Compound Bulk Wave Velocity Ca3TaGa1.5Al1.5Si2O14 Calcium Compounds Cut Angle Czochralski Technique Density Measurement Dielectric Constants Dielectric Permittivity Elastic Constants Elasticity Elasticity And Anelasticity Electromechanical Coupling Factor Electrostriction Gallium Compound Leaky Surface Acoustic Wave Velocity Longitudinal Wave Velocity Mechanical And Acoustical Property of Solid SurFace And InterFace Numerical Calculation Photonic Technology Piezoelectric Constants Piezoelectric Material Piezoelectricity Plate Specimens Shear Wave Velocity Single Crystal Ingot Surface Acoustic Wave Resonator Tantalum Compound Temperature Coefficient Ultrasonic Microspectroscopy Ultrasonic Velocity |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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