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

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

doi:10.1007/s00339-005-3421-z

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 publication › Journal article › Academic research › peer-review

31 Citations (Scopus)

Abstract

Lead-free piezoelectric 0.90(Bi_1/2Na_1/2)TiO ₃-0.05(Bi_1/2K_1/2)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 k_p=0.313 and k_t=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 language	English
Pages (from-to)	715-718
Number of pages	4
Journal	Applied Physics A: Materials Science and Processing
Volume	82
Issue number	4 SPEC. ISS.
DOIs	https://doi.org/10.1007/s00339-005-3421-z
Publication status	Published - 1 Mar 2006

ASJC Scopus subject areas

General Chemistry
General Materials Science

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10.1007/s00339-005-3421-z

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abstract = "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.",

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AU - Wang, X. X.

AU - Chan, H. L.W.

AU - Choy, C. L.

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

Abstract

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