PIEZOELECTRIC CERAMIC AND PIEZOELECTRIC CERAMIC COMPOSITION

摘要

A piezoelectric ceramic 10 composed mainly of a three-component solid solution represented by the following general formula (1), wherein x, y and z in general formula (1) satisfy the following formulas (2), (3), (4) and (5).
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒx(Bi 1/2 Na 1/2 )TiO 3 -y(Bi 1/2 Li 1/2 )TiO 3 -z(Bi 1/2 K 1/2 )TiO 3 €ƒ€ƒ€ƒ€ƒ€ƒ(1) 0.80 ‰¤ x ‰¤ 0.96 0.02 ‰¤ y ‰¤ 0.08 0.01 ‰¤ z ‰¤ 0.15 x + y + z = 1