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Dielectric and piezoelectric properties of xPb(Y2/3W1/3)O3-(1 - x)Pb(Zr0.52Ti0.48)O3 system were investigated. Solubility limit of PYW into PZT was found to be near 0.02 mol% PYW, and when more than 0.03 mol% PYW was added, yttrium-rich second phase was observed. Grain size was decreased with the addition of PYW. 0.02 Pb(Y2/3W1/3)O3−0.98 Pb(Zr0.52Ti0.48)O3 showed piezoelectric constant (d 33) of 420 × 10 −12 C/N and electromechanical coupling factor (kp ) of 56%. The variations of dielectric and piezoelectric properties were explained by second phase formation and microstructural evolution.
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Yoon et al. (1993) studied this question.
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