Abstract

In this study, in order to develop the composition ceramics for ultrasonic sensor with high $d_{33}*g_{33}$, $Pb_{1-3x/2}Bix(Mg_{1/2}W_{1/2})_{0.03}(Ni_{1/3}Nb_{2/3})_{0.09}(Zr_{0.5}Ti_{0.5})_{0.88}O_3$(PMW-PNN-PZT) system ceramics were prepared using CuO as sintering aids. And then, their microstructure, piezoelectric and dielectric characteristics were systemetically investigated with bismuth substitution. The PMW-PNN-PZT ceramic specimens could be sintered at sintering temperature of $940^{\circ}C$ by adding sintering aids. At x=0.015 specimen, the density, electromechanical coupling factor($k_p$), dielectric constant, piezoelectric constant($d_{33}$) and piezoelectric figure of merit($d_{33}*g_{33}$) indicated the optimal properties of $7.90g/cm^3$, 0.67, 2,511, 628 pC/N, and $17.7pm^2/N$, respectively, for duplex ultrasonic sensor application.

Keywords

• PMW-PNN-PZT;
• Bismuth substitution;
• Piezoelectric ceramic;
• Duplex ultrasonic sensor

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Acknowledgement

Supported by : 중소기업청

References

1. H. W. Chung, S. H. Lim, G. H. Kim, D. H. Li, E. S. Lee, B. D. Ahn, and S. Y. Lee, Sensor. Actuat., A, 128, 350 (2006). [DOI: http://dx.doi.org/10.1016/j.sna.2006.01.041] https://doi.org/10.1016/j.sna.2006.01.041
2. B. Jaffe, W. R. Cook Jr., and H. Jaffe, Piezoelectric Ceramics (Academic Press, New York, 1971) p. 185.
3. Z. Yang, X. Zong, H. Li, and Y. Chang, J. of Material Letters, 59, 3476 (2005). [DOI: http://dx.doi.org/10.1016/j.matlet.2005.06.017] https://doi.org/10.1016/j.matlet.2005.06.017
4. K. S. Lee, I. H. Lee, J. H. Yoo, and S. L. Ryu, J. Korean Inst. Electr. Electron. Mater. Eng., 20, 1034 (2007).
5. S. H. Sin and J. H. Yoo, J. Korean Inst. Electr. Electron. Mater. Eng., 29, 90 (2016).