Piezoceramic, piezoelectric device with the piezoceramic and method of manufacturing the piezoceram

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The Invention relates to a piezoceramic with a piezoceramic Phase with lead zirconate titanate (PZT-PNN) and lead nickeloniobate. A general empirical formula of the piezoceramic phase 1-a is Pb (Ni 1/3 Nb2/3) Dc Zrx Ti y 3 O z, wherein D alkaline earth metal portion at least one alkaline earth metal with a c and a is 0, c > 0 ≤ and 0.9 (x + y+ z) ≤ 1.1 are. The piezoceramic is characterized in that the piezoceramic Phase a phase fraction of over 99 vol %, based on a solids content of the piezoceramic, has. Besides the piezoceramic be a piezoelectric device with a method for the production of the piezo-ceramic of the piezoceramic and specified. Zum producing the piezoceramic is a mixed-oxides-Method used. This oxidic starting materials are of the metals the piezoceramic used. In particular by the use of NiO and Nb 2 O5 arises in the formation of the piezoceramic intermediate a pryochlorphases, the the compression of the piezoceramic favoured. It results a Piezoceramic sealing fire temperature of less than 950 °C and a with a relatively high d 33- coefficients. With the Piezoceramic is a monolithic, piezoelectric piezo element accessible, for the Silver, copper or a silver palladium alloy Low palladium portion can be used as electrode material. The Component with one or more piezoelectric elements can than bending transducer be constructed. We could also consider...