| Title |
Effects of Cr2O3 Addition on the Piezoelectric Properties of Pb(Zr0.54Ti0.46)O3-Nb2O5 Thick Films |
| Authors |
오정민(Jung Min Oh); 이주희(Joo Hee Lee); 백종후(Jong Hoo Paik); 김세기(Sei Ki Kim); 이영진(Young Jin Lee) |
| DOI |
https://doi.org/10.3365/KJMM.2014.52.2.149 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
ceramics; piezoelectric; casting; PZT; Cr2O3 |
| 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) |