abstract |
Ceramic material according to the general formula: Pb 1- (m / 2 ) x M m x (Zr 1-y Ti y ) O 3 + a-z PbTiO 3 where M is at least one element selected from: Nd, La, Ba, Sr, Sb, Bi, K, Na, and where: 0 ≤ x ≤ 0.1; 0.3 ≤ y ≤ 0, 7; 0≤z≤y; 0 <(az) <0.01 and m has the value +1, +2 or +3 corresponding to the valency of the respective metal M |