Effect of Y-doping on the piezoelectric properties of (1-x)BiScO<inf>3</inf>-xPbTiO<inf>3</inf> high-temperature piezoelectric ceramics

Abstract

(1-x)Bi(Sc<inf>1-y</inf>Y<inf>y</inf>)O<inf>3</inf>-xPbTiO<inf>3</inf> (BSYPTx/y) ceramics were prepared by the conventional mixed oxide method. It was found that the morphotropic phase boundary (MPB) between rhombohedral and tetragonal phase of BSYPTx/y system was moved to the lower PT content with increasing of BiYO<inf>3</inf> content. The Curie temperature (T<inf>C</inf>) near MPB of BSYPTx/y ceramics was found to increase with increasing of BiYO<inf>3</inf> content. However, the piezoelectric properties (d<inf>33</inf> and k<inf>p</inf>) decreased with increasing of BiYO<inf>3</inf> content. BSYPTx/y ceramics with x = 0.56, y = 0.2 showed a high T<inf>C</inf> of 490 &#x00B0;C and a large d<inf>33</inf> of 147 pC/N.

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Cite this paper

@article{Li2009EffectOY, title={Effect of Y-doping on the piezoelectric properties of (1-x)BiScO3-xPbTiO3 high-temperature piezoelectric ceramics}, author={Qishou Li and Wei Shi and Yuzhi Jiang and Ying Hua Pei and Qiang Chen and Xi Yue and Dingquan Xiao and Jianguo Zhu}, journal={2009 18th IEEE International Symposium on the Applications of Ferroelectrics}, year={2009}, pages={1-4} }