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Effect of lead zinc niobate addition on sintering behavior and piezoelectric properties of lead zirconate titanate ceramic

Published online by Cambridge University Press:  03 March 2011

Sung-Mi Lee
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul 151-742, Korea
Chang-Bun Yoon
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul 151-742, Korea
Seung-Ho Lee
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul 151-742, Korea
Hyoun-Ee Kim*
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul 151-742, Korea
*
a) Address all correspondence to this author. e-mail; kimhe@snu.ac.kr
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Abstract

We investigated the effect of lead zinc niobate (PZN) on the sintering behavior and piezoelectric properties of lead zirconate titanate (PZT) ceramics. The addition of PZN improved the sinterability of PZT ceramic so remarkably, that at additions of more than 10%, the specimens were fully dense at a temperature as low as 900 °C. The phase of the PZT-PZN ceramics was affected by PZN content and the Zr/Ti ratio in the PZT. With increasing PZN content, a lower Zr/Ti ratio was required for the morphotropic phase boundary (MPB). Specimens with the MPB composition showed the highest piezoelectric properties; d33 = 500 pC/N, kp = 0.68, and S33 = 0.38% at 2 kV/mm.

Type
Rapid Communications
Copyright
Copyright © Materials Research Society 2004

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References

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