Piezoelectric Materials Synthesized by the Hydrothermal Method and Their ApplicationsReport as inadecuate


Piezoelectric Materials Synthesized by the Hydrothermal Method and Their Applications


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Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8563, Japan





Abstract Synthesis by the hydrothermal method has various advantages, including low reaction temperature, three-dimensional substrate availability, and automatic polarization alignment during the process. In this review, powder synthesis, the fabrication of piezoelectric thin films, and their applications are introduced. A polycrystalline lead zirconate titanate PZT thin film was applied to a micro ultrasonic motor, and an epitaxial lead titanate PbTiO3 thin film was estimated as a ferroelectric data storage medium. Ferroelectric and piezoelectric properties were successfully obtained for epitaxial PbTiO3 films. As lead-free piezoelectric powders, KNbO3 and NaNbO3 powders were synthesized by the hydrothermal method and sintered together to form K,NaNbO3 ceramics, from which reasonable piezoelectric performance was achieved. View Full-Text

Keywords: hydrothermal method; PZT thin film; lead titanate; epitaxial film; lead-free piezoelectric ceramics hydrothermal method; PZT thin film; lead titanate; epitaxial film; lead-free piezoelectric ceramics





Author: Takeshi Morita

Source: http://mdpi.com/



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