| Title |
Polarization Behavior of the Morphotropic Phase Boundary in (1-x)Pb(Yb1/2Nb1/2)O3 -xPbTiO3 Solid Solutions |
| DOI |
https://doi.org/10.3365/KJMM.2013.51.4.299 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
ceramics; powder processing; electrical properties; electrical; morphotropic phase boundary |
| Abstract |
From polarization-electric field (P-E) results of the (1-x)Pb(Yb1/2Nb1/2)O3-xPbTiO3 ((1-x)PYN-xPT, 0.30≤x≤ 0.70) solid solutions tested at room temperature, remanent polarization (Pr) and coercive field (Ec) values with composition ranges of 0.30 ≤x ≤0.40 tended to increase gradually. In the composition of 0.46 ≤x ≤0.56 including the morphotropic phase boundary (MPB), the Pr values decreased as a whole, but the Ec values increased. For the temperature effect, the area of hysteresis loops in the composition of 0.44 ≤x ≤0.50 decreased from room temperature to 220℃, which shows the typical characteristics found in ferroelectrics. Piezoelectric measurements revealed a maximum piezoelectric constant (d33) of 302 pC / N at x = 0.50. |