Manganese-modified BiScO 3-PbTiO 3 piezoelectric ceramic for high-temperature shear mode sensor

Shujun Zhang, Richard E. Eitel, Clive A. Randall, Thomas R. Shrout, Edward F. Alberta

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158 Scopus citations

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.

Original languageEnglish (US)
Article number262904
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number26
DOIs
StatePublished - Jun 27 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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