Abstract
The bismuth-based perovskite solid solution (100-x) BiSc O3 -xPbTi O3 (BSPT) was investigated for use at temperatures up to 400 °C and above. The high-temperature resistivity, together with dielectric and piezoelectric behaviors of the shear mode for manganese-modified BSPT ceramics near the morphotropic phase boundary composition were studied. The resistivity and time constant were found to be 3× 107 Ω cm and 0.08 s, respectively, at 450 °C for modified BSPT66. The dielectric constant Κ11T and dielectric loss were found to be 1112 and 1%, respectively, at room temperature, showing a Curie temperature at 468 °C. The electromechanical coupling factor k15 was calculated to be 61%, staying nearly constant up to 440 °C, expanding the temperature usage range significantly. The properties indicate that the modified BSPT66 material is a promising candidate for high-temperature shear sensor applications. © 2005 American Institute of Physics.
| Original language | English |
|---|---|
| Article number | 262904 |
| Pages (from-to) | 1-3 |
| Journal | Applied Physics Letters |
| Volume | 86 |
| Issue number | 26 |
| DOIs | |
| Publication status | Published - 27 Jun 2005 |
| 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
This work is supported by NIH under Grant No. P41-RR 11795 and ONR, DARPA.
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