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Electrical properties of lead-free (1-x)(Na0.5K0.5)NbO3-xBa(Zr0.52Ti0.48)O3ceramics

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Abstract

Lead-free (1-x)NKN-xBZT ceramics were fabricated by a conventional mixed oxide method. The results indicate that the content of BZT significantly influences the sintering, microstructure and electrical properties of (1-x)NKN-xBZT ceramics. For the (1-x)NKN-xBZT ceramics sintered at 1100°C, the bulk density increased with increasing content of BZT until reaching a maximum value at a content of 0.3BZT. The dielectric constant, piezoelectric constant and electromechanical coupling factor of the (1-x)NKN-xBZT ceramics increased with adding BZT content at a low BZT content, in spite of the deformation of the NKN lattice, which might be due to the increase in their density. The optimum properties d 33 = 155 pC/N, k p = 36%, ɛ = 393 and P r = 9.8 μC/cm2 were obtained for the 0.97NKN-0.03BZT ceramics sintered at 1100°C for 4 h.

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Authors and Affiliations

  1. Department of Electronics Materials Engineering, Kwangwoon University, Seoul, 139-701, Korea

    Dong-Hyun Lee, Seung-Hwan Lee, Eui-Sun Choi, Sang-Chul Lee & Young-Hie Lee

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  1. Dong-Hyun Lee
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  2. Seung-Hwan Lee
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  3. Eui-Sun Choi
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  4. Sang-Chul Lee
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  5. Young-Hie Lee
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Correspondence to Young-Hie Lee.

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Lee, DH., Lee, SH., Choi, ES. et al. Electrical properties of lead-free (1-x)(Na0.5K0.5)NbO3-xBa(Zr0.52Ti0.48)O3ceramics. Electron. Mater. Lett. 7, 201–204 (2011). https://doi.org/10.1007/s13391-011-0904-2

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  • DOI: https://doi.org/10.1007/s13391-011-0904-2

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