Piezoceramic material, piezoelectric element and non-resonance knock sensor

摘要

A piezoceramic material according to an embodiment of the present invention has a composition represented by Pb n {Zr 1-x-y-z Ti x Sn y (Sb 1-n Nb n ) z }O 3 where 1.000 ‰¤ m ‰¤ 1.075, 0.470 ‰¤ x < 0.490, 0.020 ‰¤ y ‰¤ 0.040, 0 < n < 1.000 and 0 < z ‰¤ 0.025 and a crystallite size of 30 to 39 nm.