BaTi03-PbTi03 series single crystal and method of manufacturing the same piezoelectric type actuator and liquid discharge head using such piezoelectric type actuator

摘要

BaTiO3-PbTiO3 series single crystal is single-crystallized by heating BaTiO3-PbTiO3 compact powder member or sintered member having a smaller Pb-containing mol number than Ba-containing mol number, while keeping the powder or substance in non-molten condition. In this way, this single crystal can be manufactured at a crystal growing speed faster still and stabilized more, significantly contributing to improving the dielectric loss and electromechanical coupling coefficient for the provision of excellent BaTiO3-PbTiO3 series single crystal in various properties, as well as for the provision of piezoelectric material having a small ratio of lead content, which is particularly excellent in piezoelectric property and productivity.