| Autor: |
Cheng, W.X., He, X.Y., Sun, D.Z., Zheng, X.S., Qiu, P.S. |
| Zdroj: |
Materials Science Forum; November 2010, Vol. 663 Issue: 1 p555-558, 4p |
| Abstrakt: |
(200) grain-oriented 0.91Pb(Zn1/3Nb2/3)O3–0.09PbTiO3 (PMN–0.09PT) piezoelectric ceramics with a degree of orientation of 0.5052 have been produced from melt by a directional solidification method. The dielectric, ferroelectric, and piezoelectric properties were investigated, e.g., ε~4200, tanδ~0.8%, d33~2100pC/N, kt~58%, and k33~90%, some of these values are comparable to those of ~PZN–PT single crystals. The strain–electric-field curve with a maximum strain of 0.49% at a field of 7kV/cm and well-saturated hysteresis loops with a Pr~32 mC/cm2 were recorded. The results demonstrate that the directional solidification method is a promising technique to fabricate high performance grain-oriented PZN–PT ceramics. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
