TY - JOUR
T1 - Elastic, piezoelectric, and dielectric properties of 0.955pb(zn1/3nb2/3)o3-0.45pbtio3 single crystal with designed multidomains
AU - Yin, Jianhua
AU - Jiang, Bei
AU - Cao, Wenwu
N1 - Funding Information:
Manuscript received August 13, 1999; accepted October 7, 1999. This research was sponsored by the Office of Naval Research under Grant #N00014-98-1-0527 and the National Institutes of Health under Grant #P41 RR11795-01A1. The authors are with the Material Research Laboratory, The Pennsylvania State University, University Park, PA 16802 (e-mail: caoQmath.psu.edu).
PY - 2000/1
Y1 - 2000/1
N2 - The clastic, piezoelectric, and dielectric properties of a 0.955Pb(Zn1/3Nb2/3)O3-0.045PbTiO3 (PZN4.5%PT) multi-domain single crystal, poled along [001] of the original cubic direction, have been determined experimentally using combined resonance and ultrasonic methods. At room temperature, the PZN-4.5%PT single crystal has rhombohedral symmetry. After being poled along [001], four degenerate states still remain. Statistically, such a domain-engineered crystal may be treated as having an average tetragonal symmetry, and its material constants were determined based on 4 mm symmetry. It was confirmed that the electromechanical coupling coefficient fcss for the domain-engineered samples is >90%, and the piezoelectric constant daa is >2000 pC/N. A soft shear mode with a velocity of 700 m/s was found in the [110] direction. Erom the measured experimental data, the orientational dependence of phase velocities and electromechanical coupling coefficients was calculated. The results showed that the transverse and longitudinal coupling coefficients, feai and fess, reach their maximum along [110] and [001], respectively.
AB - The clastic, piezoelectric, and dielectric properties of a 0.955Pb(Zn1/3Nb2/3)O3-0.045PbTiO3 (PZN4.5%PT) multi-domain single crystal, poled along [001] of the original cubic direction, have been determined experimentally using combined resonance and ultrasonic methods. At room temperature, the PZN-4.5%PT single crystal has rhombohedral symmetry. After being poled along [001], four degenerate states still remain. Statistically, such a domain-engineered crystal may be treated as having an average tetragonal symmetry, and its material constants were determined based on 4 mm symmetry. It was confirmed that the electromechanical coupling coefficient fcss for the domain-engineered samples is >90%, and the piezoelectric constant daa is >2000 pC/N. A soft shear mode with a velocity of 700 m/s was found in the [110] direction. Erom the measured experimental data, the orientational dependence of phase velocities and electromechanical coupling coefficients was calculated. The results showed that the transverse and longitudinal coupling coefficients, feai and fess, reach their maximum along [110] and [001], respectively.
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U2 - 10.1109/58.818772
DO - 10.1109/58.818772
M3 - Article
C2 - 18238541
AN - SCOPUS:0033896979
SN - 0885-3010
VL - 47
SP - 285
EP - 291
JO - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
JF - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
IS - 1
ER -