Bleifreier piezokeramischer Werkstoff mit Kupferdotierung, Verfahren zum Herstellen eines piezokeramischen Bauteils mit dem Werkstoff und Verwendung des Bauteils

摘要

Production of a piezo-ceramic component made from a piezo-ceramic material comprises preparing a green body with a piezo-ceramic starting composition of the material and heat treating. An independent claim is also included for a piezo-ceramic material made from the composition: AaCucNb1-bBbO3 (where A = alkali metal; B = cobalt, iron, germanium, manganese or tin; a > 0; c > 0 and 0