(K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders

T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, T. Hemsel, Materials Letters 64 (2010) 125–128.

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Abstract
Among various lead-free piezoelectric materials, (K,Na)NbO$_{3}$ is a very promising candidate. In this study, (K,Na)NbO$_{3}$ ceramics were sintered from mixed (K,Na)NbO$_{3}$ and NaNbO$_{3}$ powders prepared by hydrothermal reaction. These two powders were mixed with distilled water in a KNbO$_{3}$/NaNbO$_{3}$ molar ratio of 1. After sintering the mixed powder, the solid solution of (Na,K)NbO$_{3}$ ceramics was obtained. The electrical properties such as the electromechanical coupling factors k$_{p}$ and k$_{33}$, the mechanical quality factor, Q$_{m}$, and the piezoelectric constant d$_{33}$ of the sintered (K,Na)NbO$_{3}$ ceramics were 0.32, 0.48, 71 (radial mode), 118 ((33)mode), and 107 pC/N, respectively.
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Journal Title
Materials Letters
Volume
64
Issue
2
Page
125-128
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Maeda T, Takiguchi N, Morita T, Ishikawa M, Hemsel T. (K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders. Materials Letters. 2010;64(2):125-128. doi:10.1016/j.matlet.2009.10.012
Maeda, T., Takiguchi, N., Morita, T., Ishikawa, M., & Hemsel, T. (2010). (K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders. Materials Letters, 64(2), 125–128. https://doi.org/10.1016/j.matlet.2009.10.012
@article{Maeda_Takiguchi_Morita_Ishikawa_Hemsel_2010, title={(K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders}, volume={64}, DOI={10.1016/j.matlet.2009.10.012}, number={2}, journal={Materials Letters}, author={Maeda, Takafumi and Takiguchi, Norihito and Morita, Takeshi and Ishikawa, Mutsuo and Hemsel, Tobias}, year={2010}, pages={125–128} }
Maeda, Takafumi, Norihito Takiguchi, Takeshi Morita, Mutsuo Ishikawa, and Tobias Hemsel. “(K,Na)NbO3 Lead-Free Piezoelectric Ceramics Synthesized from Hydrothermal Powders.” Materials Letters 64, no. 2 (2010): 125–28. https://doi.org/10.1016/j.matlet.2009.10.012.
T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, and T. Hemsel, “(K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders,” Materials Letters, vol. 64, no. 2, pp. 125–128, 2010.
Maeda, Takafumi, et al. “(K,Na)NbO3 Lead-Free Piezoelectric Ceramics Synthesized from Hydrothermal Powders.” Materials Letters, vol. 64, no. 2, 2010, pp. 125–28, doi:10.1016/j.matlet.2009.10.012.

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