Ceramic material for a piezoelectric actuator and / or sensor device and manufacturing method for a ceramic material for a piezoelectric actuator and / or sensor device

The invention relates to a ceramic material (10) for a piezoelectric actuator and / or sensor device on a basis of at least bismuth sodium barium strontium titanate with a complex doping ion complexes with a monovalent ion of lithium, silver and / or potassium and a trivalent ion of lanthanum, iron, yttrium, ytterbium and / or aluminum. The invention also relates to a manufacturing method for a ceramic material (10) for a piezoelectric actuator and / or sensor device comprising the steps of: doping a material on a basis of at least bismuth sodium barium strontium titanate having ion complexes with a monovalent ion of lithium , silver and / or potassium and a trivalent ion of lanthanum, iron, yttrium, ytterbium and / or aluminum. Additionally, the invention relates to a piezoelectric actuator and / or sensor device and a manufacturing method for a piezoelectric actuator and / or sensor device. Furthermore, the invention provides a control element and a Hertel averaging method for a control element concerns.