Piezoelektrisches Material aus Alkalimetall-Niobat und zugehöriges Herstellungsverfahren

摘要

An alkali metal-containing niobate-based piezoelectric material composition comprises a solid solution represented by a composition formula (ANbO3) (A: alkali metal), and at least one additive selected from Cu, Li and Ta. Preferably the solid solution comprises KNaNbO3 or LiKNaNbTaO3 and the additive is Cu to improve sintering.