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Dielectric and piezoelectric properties of PMN-PT ceramics doped with strontium
Journal article   Open access   Peer reviewed

Dielectric and piezoelectric properties of PMN-PT ceramics doped with strontium

Volkan Kalem, Wan Y. Shih and Wei-Heng Shih
Ceramics international, v 44(3), pp 2835-2842
15 Feb 2018
DOI: https://doi.org/10.1016/j.ceramint.2017.11.029
Featured in Collection :   UN Sustainable Development Goals @ Drexel
url
https://doi.org/10.3389/fpubh.2020.619261View
Published, Version of Record (VoR)CC BY V4.0,  Open

Abstract

Coating method Dielectric properties Isovalent doping Piezoelectric properties PMN-PT
Motivated by the need of piezoelectric ceramics with enhanced piezoelectric properties, we investigated the effects of Sr addition on the structural, dielectric and piezoelectric properties of PMN-PT ceramics. The synthesis of (1-x)[(Pb1−ySry)(Mg1/3Nb2/3)O3]-x(Pb1−ySryTiO3) (PsMN–PsT) (y: 0 − 0.10, x: 0.35 – 0.40) ceramics was carried out by the colloidal coating method to distribute Sr uniformly in PMN and PT respectively. When x=0.35, it was found that y=0.02 gave the optimal piezoelectric properties. Furthermore, by keeping y=0.02 and varying x, it was found that x=0.37 gave even better piezoelectric properties with the optimal piezoelectric strain coefficient d33 (630 pC/N), piezoelectric coupling factor kp (0.52), dielectric constant εr (4000), and Curie temperature Tc (210°C), exhibiting great potential for actuator and sensor applications.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Materials Science, Ceramics
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