@article{9758,
  abstract     = {{As a lead-free piezoelectric ceramics, (K,Na)NbO$_{3}$ is a promising material because of its good piezoelectric properties. In this study, (K$_{1-x}$Na$_{x}$)NbO$_{3}$ ceramics were synthesized from a KNbO$_{3}$ and NaNbO$_{3}$ mixture powder prepared by the hydrothermal reaction. The hydrothermal reaction enables the production of high quality powder for the ceramics fabrication process. To obtain (K$_{1-x}$Na$_{x}$)NbO$_{3}$ ceramics, these two powders KNbO$_{3}$ and NaNbO$_{3}$ were mixed and then sintered together. X-Ray diffraction analysis revealed that the solid solution ceramics (K$_{1-x}$Na$_{x}$)NbO$_{3}$ was produced by the sintering process. The K/Na ratio in (K$_{1-x}$Na$_{x}$)NbO$_{3}$ ceramics was optimized for the best piezoelectric properties. The optimized forms was (K$_{0.48}$Na$_{0.52}$)NbO$_{3}$, which showed the following piezoelectric properties; k$_{33}$=0.56, d$_{33}$=114pC/N. In addition, the ferroelectric properties, P$_{r}$=7.72mC/cm$^{2}$, E$_{c}$=857V/mm, and the Curie temperature T$_{c}$=420$_{o}$C were also measured.}},
  author       = {{Maeda, Takafumi and Takiguchi, Norihito and Morita, Takeshi and Ishikawa, Mutsuo and Hemsel, Tobias}},
  issn         = {{1948-5719}},
  journal      = {{Journal of Korean Physical Society}},
  keywords     = {{Lead-free piezoelectric material, KNN, Hydrothermal method}},
  number       = {{4}},
  pages        = {{924--928}},
  title        = {{{Hydrothermal (K1-xNax)NbO3 Lead-free Piezoelectric Ceramics}}},
  doi          = {{10.3938/jkps.57.924}},
  volume       = {{57}},
  year         = {{2010}},
}

@inproceedings{2261,
  author       = {{Schumacher, Tobias and Plessl, Christian and Platzner, Marco}},
  booktitle    = {{Proc. Int. Conf. on Field Programmable Logic and Applications (FPL)}},
  isbn         = {{978-1-4244-3892-1}},
  issn         = {{1946-1488}},
  keywords     = {{IMORC, NOC, KNN, accelerator}},
  pages        = {{338--344}},
  publisher    = {{IEEE}},
  title        = {{{An Accelerator for k-th Nearest Neighbor Thinning Based on the IMORC Infrastructure}}},
  year         = {{2009}},
}