| 简介 |
The invention relates to a piezoceramic material with a binary mixed system of a alkaline earth perovskite ABO 3 and a bismuth oxide [...] 3 is at least one alkaline-earth metal which A, B at least an element of main group IV and/or the fourth subgroup of the periodic table is, M is at least one selected from the group consisting of scandium, ytterbium and indium element selected, a perovskite-proportion of the alkaline earth perovskite on the binary mixed system of the range of 66% and 33% up to and including a bismuth oxide-proportion of the bismuth oxide including from the range of 66% to 33% is selected including including. A method for the production of a piezoceramic material, comprising the following method steps is also specified : a) providing a piezo-ceramic starting composition of the piezoceramic material and b) heat treating the piezoceramic starting composition, wherein the piezoceramic material is produced. Thin films of the piezoceramic material on wet chemical with the invention can be made and thus simple way. The material also shows excellent piezoelectric properties in the form of such a thin film. The new material is in particular in MEMS Making (Micro Electro [...] system). The actuator system is used the material but also in, for example, for fuel injection systems or in ultrasonic transducers. |
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