Study of compressive type accelerometer based on lead-free BNKBT piezoceramics

S. H. Choy, X. X. Wang, H. L.W. Chan, C. L. Choy

Research output: Journal article publicationJournal articleAcademic researchpeer-review

27 Citations (Scopus)


Lead-free piezoelectric 0.90(Bi1/2Na1/2)TiO 3-0.05(Bi1/2K1/2)TiO3-0.05BaTiO 3 ceramics(abbreviated as BNKBT-5) rings were fabricated using a conventional mixed oxide method. The ceramics have a piezoelectric constant d33=168 pC/N, electromechanical coupling factors kp=0.313 and kt=0.487. The BNKBT lead-free ceramic rings were used as the transduction elements in a compressive type accelerometer and its performance compared with a lead zirconate titanate (PZT) APC 840 ceramic accelerometer with similar structure. The lead-free accelerometer shows good performance and has a broader frequency response compared to the lead-based PZT accelerometer.

Original languageEnglish
Pages (from-to)715-718
Number of pages4
JournalApplied Physics A: Materials Science and Processing
Issue number4 SPEC. ISS.
Publication statusPublished - 1 Mar 2006

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science


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