Effect of Sintering Temperature on Microstructure and Electrical Properties of (1-x)BCZT-xBY Lead-Free Ceramics

Abstract:

Lead-free 0.996(Ba_0.85Ca_0.15)(Zr_0.1Ti_0.9)O₃-0.004BiYO₃ [BCZT-BY] ceramics were prepared by the conventional solid-state sintering method. By means of XRD, SEM, and quasi-static d₃₃ meter etc., the effect of sintering temperature on the microstructure, piezoelectric and dielectric properties of BCZT-BY ceramics were investigated. All the ceramics possess a pure perovskite structure, indicating that Bi³⁺ and Y³⁺ are incorporated into Ba_0.85Ca_0.15Ti_0.9Zr_0.1O₃ lattices to form a solid solution. The results show that the ceramics sintered at 1420°C exhibit the optimum electrical properties: d₃₃ = 130 pC/N, k_p = 18.2 %, ε_r = 4225, and tan δ = 1.95%, respectively.

• Periodical: Advanced Materials Research (Volume 900)
• Pages: 119-122
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.900.119
• Online since: February 2014
• Authors: Xiao Qin Huang, Qi Bin Liu*, Cheng Zhang
• Keywords: Dielectric Property, Lead-Free Piezoelectric Ceramics, Piezoelectric Properties, Sintering Temperature

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