Piezoelectric component e.g. monolithic piezoceramic multilayer actuator, for controlling fuel injection valve of combustion engine for motor car, has piezoceramic layer comprising sodium, lithium, silver and ozone in specified composition

摘要

The component e.g. monolithic piezoceramic multilayer actuator (1), has piezo elements (10) comprising electrode layers (11, 12) with electrode materials. A piezoceramic layer (13) is arranged between the electrode layers. One of the electrode materials comprises silver. The piezoceramic layer comprises potassium, sodium, lithium, silver, niobium, tantalum and ozone in specified stoichiometric composition. The piezo elements are arranged one above the other to form a piezo element stack. A mixed oxide of silver niobate is utilized in piezoceramic output composition of a piezoceramic material. An independent claim is also included for a method for manufacturing a piezoelectric component.