Complete Sets of Elastic, Dielectric, and Piezoelectric Properties of [001]-Poled Rhombohedral Pb(Zn1/3Nb2/3)O3–(4.5–7)%PbTiO3 Single Crystals

Autor: S. Zhang, L. C. Lim
Rok vydání: 2019
Předmět:
Zdroj: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 66:816-819
ISSN: 1525-8955
0885-3010
DOI: 10.1109/tuffc.2019.2892160
Popis: Complete sets of elastic, dielectric, and piezoelectric properties of flux grown rhombohedral Pb(Zn1/3Nb2/3)O3–xPbTiO3 (PZN–PT; $x =0.0475$ , 0.055, and 0.065) single crystals poled along [001] crystal direction have been determined in the present work. Their phase transformation temperatures, coercive fields, and mechanical quality factors are also provided. The results show that [001]-poled rhombohedral PZN–PT single crystals exhibit superior longitudinal piezoelectric properties ( $k_{33} \ge0.90$ , $d_{33} \approx 1580$ –2500 pC/N). While the piezoelectric properties increase with PT content, the $T_{\mathrm{ RT}}$ and hence temperature stability of the crystal degrade accordingly. These unique properties, together with the property matrices provided in this work, can be used advantageously to design high-performance piezoelectric devices of longitudinal activation/sensing mode to suit various application needs.
Databáze: OpenAIRE