Patent ID: 7990029

Claim:
A ceramic material comprising lead zirconate titanate, which additionally contains Nd and Ni, the ceramic material having a composition according to the following formulae: for y≦x/2: a PbO+(Pb 1−3x/2−y□x/2−y Nd x )((Zr 1−z Ti z ) 1−y Ni y )O 3 for y<x/2: a PbO+(Pb 1−x Nd x)((Zr 1−z Ti z ) 1−y Ni y )O 3−y+x/2⋄y−x/2 , where 0≦a<1, 0<x<1, 0<y<1, 0<z<1, a stands for an excess of PbO in the weigh-in, □ represents a Pb vacancy and ⋄ represents an O vacancy.