scholarly journals Elastic, dielectric, and piezoelectric constants of Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 single crystal poled along [011]c

2010 ◽  
Vol 97 (3) ◽  
pp. 032902 ◽  
Author(s):  
Enwei Sun ◽  
Shujun Zhang ◽  
Jun Luo ◽  
Thomas R. Shrout ◽  
Wenwu Cao
Keyword(s):  
Single Crystal ◽  
Elastic Dielectric ◽  
Piezoelectric Constants

Complete set of elastic, dielectric, and piezoelectric constants of orthorhombic 0.71Pb(Mg1∕3Nb2∕3)O3–0.29PbTiO3 single crystal

2007 ◽  
Vol 90 (21) ◽  
pp. 212903 ◽  
Author(s):  
Feifei Wang ◽  
Laihui Luo ◽  
Dan Zhou ◽  
Xiangyong Zhao ◽  
Haosu Luo
Keyword(s):  
Single Crystal ◽  
Complete Set ◽  
Elastic Dielectric ◽  
Piezoelectric Constants

LEAKY SURFACE ACOUSTIC WAVES IN SINGLE-CRYSTAL AlN SUBSTRATE

2004 ◽  
Vol 14 (03) ◽  
pp. 837-846 ◽  
Author(s):  
GANG BU ◽  
DAUMANTAS CIPLYS ◽  
MICHAEL S. SHUR ◽  
LEO J. SCHOWALTER ◽  
SANDRA B. SCHUJMAN ◽  
...  
Keyword(s):  
Single Crystal ◽  
Acoustic Waves ◽  
Electromechanical Coupling ◽  
Surface Acoustic Waves ◽  
Propagation Direction ◽  
Electromechanical Coupling Coefficient ◽  
Coupling Coefficients ◽  
Leaky Waves ◽  
Temperature Coefficient Of Frequency ◽  
Piezoelectric Constants

We report on the velocity V and the electromechanical coupling coefficient K2 of the first and the second leaky surface acoustic waves in various propagation directions in the a-plane AlN single-crystal. For c-propagation direction, the second leaky wave exhibited the velocity of 11016 m/s and K2 of 0.45%. For this direction, the temperature coefficient of frequency was found to be -30 ppm/°C. A near match of the velocities of the plane and leaky waves in the a-plane AlN allowed us to establish analytical relationships between the piezoelectric and elastic constants. A full set of elastic and piezoelectric constants of AlN has been evaluated by fitting the measured and calculated dependencies of velocities and electromechanical coupling coefficients on the propagation direction for both Rayleigh and leaky waves.

Fabrication of a 40 MHz Single Element Ultrasonic Transducer Using a PMN-PT Single Crystal

2006 ◽  
Vol 321-323 ◽  
pp. 978-983 ◽  
Author(s):  
Dong Guk Paeng ◽  
Hyung Ham Kim ◽  
Sang Goo Lee ◽  
Sung Min Rhim ◽  
Min Joo Choi
Keyword(s):  
Single Crystal ◽  
High Frequency ◽  
Electromechanical Coupling ◽  
Ultrasonic Transducer ◽  
Electromechanical Coupling Coefficient ◽  
Single Element ◽  
Transducer Arrays ◽  
High Dielectric ◽  
Pulse Echo ◽  
Piezoelectric Constants

PMN-PT, a piezoelectric single crystal, has been known to be a better material for transducer arrays due to its high electromechanical coupling coefficient (k33) and high dielectric and piezoelectric constants. It may also be good even for high frequency single element transducers using relatively high kt and low attenuation and velocity dispersion. However, it’s challenging to fabricate high frequency transducers using PMN-PT since it is easily breakable and requires small area and thickness of the transducer. A KLM model was used to simulate a 40 MHz single element transducer including 2 matching layers and a conductive backing. The simulation showed that the PMN-PT transducer turned out to be better in sensitivity and bandwidth than a 40 MHz LiNbO3 transducer. A 40 MHz PMN-29%PT transducer was fabricated and the pulse echo signals were obtained and analyzed. Its sensitivity was found to be –48 dB and –6dB bandwidth was about 48 %.

Identification of elastic, dielectric, and piezoelectric constants in piezoceramic disks

2010 ◽  
Vol 57 (12) ◽  
pp. 2772-2783 ◽  
Author(s):  
Nicolás Pérez ◽  
M A B Andrade ◽  
Flávio Buiochi ◽  
J C Adamowski
Keyword(s):  
Elastic Dielectric ◽  
Piezoelectric Constants

The Elastic, Dielectric and Piezoelectric Constants of Berlinite

1982 ◽  
Author(s):  
D.S. Bailey ◽  
W. Soluch ◽  
D.L. Lee ◽  
J.F. Vetelino ◽  
J. Andle ◽  
...  
Keyword(s):  
Elastic Dielectric ◽  
Piezoelectric Constants

Elastic, dielectric, and piezoelectric properties of BaTeMo2O9 single crystal

2008 ◽  
Vol 93 (25) ◽  
pp. 252906 ◽  
Author(s):  
Zeliang Gao ◽  
Xutang Tao ◽  
Xin Yin ◽  
Weiguo Zhang ◽  
Minhua Jiang
Keyword(s):  
Single Crystal ◽  
Piezoelectric Properties ◽  
Dielectric And Piezoelectric Properties ◽  
Elastic Dielectric
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