Abstract
(1-x)Pb(Hf1-yTiy)O3-xPb(Yb 0.5Nb0.5)O3 (x = 0.10-0.44, y = 0.55-0.80) ceramics were fabricated. The morphotropic phase boundary (MPB) of the ternary system was determined by X-ray powder diffraction. The optimum dielectric and piezoelectric properties were achieved in 0.8Pb(Hf0.4Ti 0.6)O3-0.2Pb(Yb0.5Nb0.5)O 3 ceramics with MPB composition, where the dielectric permittivity εr, piezoelectric coefficient d33, planar electromechanical coupling kp, and Curie temperature Tc were found to be on the order of 1930,480 pC/N, 62%, and 360°C, respectively. The unipolar strain behavior was evaluated as a function of applied electric field up to 50 kV/cm to investigate the strain nonlinearity and domain wall motion under large drive field, where the high field piezoelectric d33* was found to be 620 pm/V for 0.82Pb(Hf 0.4Ti0.6)O3-0.18Pb(Yb0.5Nb 0.5)O3. In addition, Rayleigh analysis was carried out to study the extrinsic contribution, where the value was found to be in the range 2%-18%. © 2013 The American Ceramic Society.
| Original language | English |
|---|---|
| Pages (from-to) | 2857-2863 |
| Journal | Journal of the American Ceramic Society |
| Volume | 96 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Sept 2013 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Funding
The author Hua Tang acknowledges the supports from the China Scholarship Council.
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