A generalized rule for large piezoelectric response in perovskite oxide ceramics and its application for design of lead-free compositions

Cheol Woo Ahn; Deepam Maurya; Chee Sung Park; Sahn Nahm; Shashank Priya

doi:10.1063/1.3142442

A generalized rule for large piezoelectric response in perovskite oxide ceramics and its application for design of lead-free compositions

Cheol Woo Ahn, Deepam Maurya, Chee Sung Park, Sahn Nahm, Shashank Priya

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

22 Citations (Scopus)

Abstract

We present a general rule for the perovskite oxide ceramics: "A large piezoelectric constant in AB O3 perovskite ceramics can be obtained by tuning the weight ratio of A and B sites, W_A/W_B or W _B/W_A to 3. Piezoelectric constant decreases significantly when W_A/W_B or W_B/W_A is in the range of 0.5-2.0, termed as forbidden zone." A comparative analysis was conducted for broad range of materials demonstrating the applicability of proposed rule. Further based on this rule optimized compositions in BaTiO3 and alkali niobate based systems were developed. Polycrystalline ceramics in modified BaTiO3 system were found to exhibit longitudinal piezoelectric coefficient (d33) of 330 pC/N, while alkali niobate ceramics showed d33 of 294 pC/N.

Original language	English
Article number	114108
Journal	Journal of Applied Physics
Volume	105
Issue number	11
DOIs	https://doi.org/10.1063/1.3142442
Publication status	Published - 2009 Jul 6

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ASJC Scopus subject areas

Physics and Astronomy(all)

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Ahn, C. W., Maurya, D., Park, C. S., Nahm, S., & Priya, S. (2009). A generalized rule for large piezoelectric response in perovskite oxide ceramics and its application for design of lead-free compositions. Journal of Applied Physics, 105(11), [114108]. https://doi.org/10.1063/1.3142442

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10.1063/1.3142442