Synthesis of lead-free piezoelectric powders by ultrasonic-assisted hydrothermal method and properties of sintered (K0.48Na0.52)NBO3 ceramics.
(K,Na)NbO3 ceramics have attracted much attention as lead-free piezoelectric materials with high piezoelectric properties. High-quality (K,Na)NbO3 ceramics can be sintered using KNbO3 and NaNbO3 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.
Gaku
G
Isobe
Takafumi
T
Maeda
Peter
P
Bornmann
Tobias
T
Hemsel
Takeshi
T
Morita
D002516:Ceramics / Q000138:chemical synthesis* / Q000528:radiation effects*; D006244:Hardness; D006361:Heating / Q000379:methods; D019220:High-Energy Shock Waves; D007854:Lead / Q000737:chemistry; D008422:Materials Testing; D055617:Micro-Electrical-Mechanical Systems / Q000379:methods*; D011208:Powders; D013010:Sonication / Q000379:methods*; D014867:Water / Q000737:chemistry*
D011208:Powders; D014867:Water; D007854:Lead