Piezoelectric and electromechanical properties of ultrahigh temperature CaBi2Nb2O9 ceramics

Chun Ming Wang, Jin Feng Wang, Shujun Zhang, Thomas R. Shrout

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

The piezoelectric, dielectric, and electromechanical properties of the (KCe) co-substituted calcium bismuth niobate (CaBi2Nb 2O9, CBN) were investigated. The piezoelectric activities of CBN ceramics were significantly enhanced and the dielectric loss tan δ decreased by (KCe) substitution. The Ca0.9 (KCe) 0.05Bi2Nb2O9 ceramics possess the optimal piezoelectric properties, and the piezoelectric coefficient (d 33), Curie temperature (TC), and electromechanical coupling factors (kp and kt) were found to be 16 pC/N, 868 °C, 8.6%, and 23.8%, respectively. The excellent dielectric and electromechanical spectra, together with the high piezoelectric activities and ultrahigh Curie temperature, make CBN ceramics promising candidates for high temperature piezoelectric applications.

Original languageEnglish (US)
Pages (from-to)49-51
Number of pages3
JournalPhysica Status Solidi - Rapid Research Letters
Volume3
Issue number2-3
DOIs
StatePublished - Dec 9 2009

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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