Synthesis of lead-free piezoelectric powders by ultrasonic-assisted hydrothermal method and properties of sintered (K0.48Na0.52)NBO3 ceramics

(K,Na)NbO 3 ceramics have attracted much attention as lead-free piezoelectric materials with high piezoelectric properties. High-quality (K,Na)NbO 3 ceramics can be sintered using KNbO 3 and NaNbO 3 powders synthesized by a hydrothermal method. In this study, to enhance the quality factor of the cer...

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Veröffentlicht in:	IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2014-02, Vol.61 (2), p.225-230
Hauptverfasser:	Isobe, Gaku, Maeda, Takafumi, Bornmann, Peter, Hemsel, Tobias, Morita, Takeshi
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustics Ceramics Ceramics - chemical synthesis Ceramics - radiation effects Hardness Heating - methods High-Energy Shock Waves Lead Lead - chemistry Materials Testing Micro-Electrical-Mechanical Systems - methods Piezoelectric materials Powders Radiation effects Sonication - methods Transducers Water - chemistry
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Beschreibung
Zusammenfassung:	(K,Na)NbO 3 ceramics have attracted much attention as lead-free piezoelectric materials with high piezoelectric properties. High-quality (K,Na)NbO 3 ceramics can be sintered using KNbO 3 and NaNbO 3 powders synthesized by a hydrothermal method. In this study, to enhance the quality factor of the ceramics, high-power ultrasonic irradiation was employed during the hydrothermal method, which led to a reduction in the particle size of the resultant powders.
ISSN:	0885-3010 1525-8955
DOI:	10.1109/TUFFC.2014.6722608