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Vol.52, No.2, 149 ~ 155, 2014
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| Title |
| Effects of Cr2O3 Addition on the Piezoelectric Properties of Pb(Zr0.54Ti0.46)O3-Nb2O5 Thick Films |
| 오정민 Jung Min Oh , 이주희 Joo Hee Lee , 백종후 Jong Hoo Paik , 김세기 Sei Ki Kim , 이영진 Young Jin Lee |
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| Abstract |
| We report on characteristics of piezoelectric ceramic thick films of Pb(Zr0.54 Ti0.46)O3 + 1.0 wt% Nb2O5 + x wt% Cr2O3 (0.1 ≤ Cr2O3 ≤ 0.5 wt%) fabricated by a tape casting method. The effects of Cr2O3 were widely examined at the various sintering temperature of 1120-1150 ℃ to increase the piezoelectricity. As a result, when x = 0.2 wt% at a sintering temperature of 1130 ℃, the ceramics had a piezoelectric constant (d33) of 408 pC/N, an electro-mechanical coupling factor (Kp) of 62.9% and a dielectric constant (εr) of 1363. †(Received March 13, 2013) |
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| Key Words |
| ceramics, piezoelectric, casting, PZT, Cr2O3 |
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