@ARTICLE{Maeda2010b,
  author = {Takafumi Maeda and Norihito Takiguchi and Takeshi Morita and Mutsuo
	Ishikawa and Tobias Hemsel},
  title = {(K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal
	powders},
  journal = {Materials Letters},
  year = {2010},
  volume = {64},
  pages = {125--128},
  number = {2},
  month = {January},
  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.},
  bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/S0167577X09007733},
  bdsk-url-2 = {http://dx.doi.org/10.1016/j.matlet.2009.10.012},
  doi = {10.1016/j.matlet.2009.10.012},
  file = {Maeda2010b.pdf:Maeda2010b.pdf:PDF},
  issn = {1948-5719},
  keywords = {Lead-free piezoelectric material; (K,Na)NbO$_{3}$ ceramics; Sintering
	solid solution; Piezoelectric properties},
  timestamp = {2013.09.26},
  url = {http://www.sciencedirect.com/science/article/pii/S0167577X09007733}
}