Patent application number | Description | Published |
20080224570 | Transformer Arrangement Having a Piezoelectric Transformer - A transformer arrangement is specified which includes a piezoelectric transformer with a main body ( | 09-18-2008 |
20090278424 | PIEZOELECTRIC TRANSFORMER AND METHOD FOR PRODUCTION THEREOF - A piezoelectric transformer includes an input part and an output part. The input part and the output part are mechanically connected along a path that includes an insulating part. The insulating part includes a surface with a depression. In the input part, mechanical oscillations are generated using electrical voltages, and, in the output part, the mechanical oscillations are converted to electrical fields. | 11-12-2009 |
20100109488 | Piezoelectric Multilayer Component - A piezoelectric multilayer component has a base body with a stack of piezoceramic layers and electrode layers arranged one on top of the other in an alternating manner. Neighboring layers of the stack are braced against one another such that stresses run perpendicular to the stacking direction. | 05-06-2010 |
20100219724 | Ceramic Material, Method for Producing the Same, and Electro-Ceramic Component Comprising the Ceramic Material - A ceramic material includes lead zirconate titanate, which additionally contains Nd and Ni. | 09-02-2010 |
20100225205 | Piezoelectric Multilayer Component - A piezoelectric multilayer component includes a stack of piezoceramic layers and electrode layers arranged one above another. At least one piezoceramic layer is printed with a layer structured according to a predefined pattern in a piezoelectrically inactive zone of the stack. The structured layer has at least one connecting element by which piezoceramic layers that are adjacent in the stacking direction are mechanically connected to one another with a first strength. The structured layer has interspaces filled at least in part with piezoceramic material of the adjacent piezoceramic layers. The adjacent piezoceramic layers in the interspaces are mechanically connected to one another with a second strength, which is less than the first strength. | 09-09-2010 |
20100320876 | Piezoelectric Multilayer Component - A piezoelectric multilayer component has a stack of green piezoceramic layers arranged one on top of the other. A first electrode layer is applied onto a piezoceramic layer and contains a first metal. A structured sacrificial layer is applied onto a further piezoceramic layer, adjacent to the first electrode layer in the stacking direction, and contains a higher concentration of the first metal than does the first electrode layer. When the intermediate product is sintered, the first metal diffuses from the structured sacrificial layer to the first electrode layer and in the process leaves cavities which form a weak layer. | 12-23-2010 |
20110006644 | Piezoelectric Multilayer Component - A piezoelectric multilayer component includes a stack of piezoceramic layers, which are arranged one on top of the other, and electrode layers. The stack has a first area and a second area. The second area contains a disturbance material, which is used to make the second area less mechanically robust than the first area. | 01-13-2011 |
20110101829 | Piezoelectric Multilayer Component - A piezoelectric multilayer component includes a stack of green piezoceramic layers which are arranged one on top of the other. A first electrode layer is applied to a piezoceramic layer and contains a first metal. A second electrode layer is applied to a further piezoceramic layer and is adjacent to the first electrode layer in the stacking direction. The second electrode layer contains a higher concentration of the first metal than does the first electrode layer. | 05-05-2011 |
20110181155 | Piezoactuator with a Predetermined Breaking Layer - A piezoactuator of multilayer design includes piezoelectric layers and electrode layers to form a stack. A predetermined breaking layer for the targeted origination and guiding of cracks is introduced between two adjacent electrode layers. The predetermined breaking layer has a barrier region, in which the formation of continuous electrically conductive paths or the formation of cracks leading through the barrier region is impeded. | 07-28-2011 |
20110259502 | Ceramic Material, Method for Producing the Same, and Electro-Ceramic Component Comprising the Ceramic Material - A method for producing a ceramic material is disclosed. A ceramic raw material mixture is produced by comminuting and mixing starting materials containing Pb, Zr, Ti, Nd and oxygen. Nickel or an nickel compound is introduced. The raw material mixture is calcined and a ceramic is sintered. | 10-27-2011 |
20110298337 | Piezoelectric Multilayer Component having a Disturbance Material and Method of Forming Same - A piezoelectric multilayer component includes a stack of piezoceramic layers, which are arranged one on top of the other, and electrode layers. The stack has a first area and a second area. The second area contains a disturbance material, which is used to make the second area less mechanically robust than the first area. | 12-08-2011 |
20120062075 | Piezoelectric Component - A piezoelectric component includes a stack of piezoelectric layers arranged one on top of the other and first and second electrode layers arranged therebetween. The stack includes at least one first piezoelectric layer having a first electrical coercive force and directly adjacent thereto at least one second piezoelectric layer having a second electrical coercive force different from the first coercive force. | 03-15-2012 |
20120119616 | Piezoelectric Multilayer Component - A piezoelectric multilayer component includes a stack of sintered piezoelectric layers and inner electrodes that are arranged there between. A piezoelectric layer includes at least one piezoelectric film. At least one of the piezoelectric films is designed as a weakening film, wherein the thickness of the weakening film is substantially smaller than the thickness of at least one of the other piezoelectric films. | 05-17-2012 |
20120306323 | Method for Producing a Piezoelectric Multilayer Component and a Piezoelectric Multilayer Component - A method for producing a piezoelectric multilayer component is disclosed. Piezoelectric green films and electrode material are provided, arranged alternately on top of one another and sintered. The electrode material is provided with a PbO-containing coating and/or PbO is mixed into the electrode material. | 12-06-2012 |
20130033155 | Piezoelectric Component - A piezoelectric component includes at least one planned fracture layer for generating and guiding cracks in the component in a controlled manner. The planned fracture layer is disposed between two electrode layers adjacent to each other in the direction of the stack. The distance d | 02-07-2013 |
20130038177 | Piezoelectric Component - A piezo electrical component has a stack of piezo electrical layers arranged over each other and electrode layers arranged therebetween. The stack has at least one first piezo electrical layer having a first piezo electrical charge constant and, directly adjacent thereto, at least one second piezo electrical layer having a second piezo electrical charge constant. The piezo electrical charge constant describes an expansion of the piezo electrical layer perpendicular to an electrical field at a voltage 6 applied to the electrode layers. The first piezo electrical charge constant is different from the second piezo electrical charge constant. | 02-14-2013 |
20130057114 | Piezoelectric Multilayer Component and Method for Producing a Piezoelectric Multilayer Component - The invention relates to a piezoelectric multilayer component as an intermediate, which comprises a stack of piezoelectric layers arranged on top of one another. The stack comprises an active region having electrode layers arranged between the piezoelectric layers and at least one inactive region, wherein the active region on the end product of the piezoelectric multilayer component is provided for the purpose of deforming when a voltage is applied to the electrode layers. The inactive region contains at least one sacrificial layer which comprises an electrically insulating material and a metal, wherein the metal can diffuse at least partially from the sacrificial layer into the piezoelectric layers of the inactive region by heating the multilayer component. | 03-07-2013 |
20140232238 | Piezoelectric Component and Method for Producing a Piezoelectric Component - A piezoelectric component has at least one piezoelectric ceramic layer and at least one electrode adjacent the piezoelectric ceramic layer. The piezoelectric ceramic layer has a piezoelectric ceramic material of the general formula Pb | 08-21-2014 |
20140285070 | CERAMIC MATERIAL, METHOD FOR PRODUCING THE CERAMIC MATERIAL, AND ELECTROCERAMIC COMPONENT COMPRISING THE CERAMIC MATERIAL - The invention relates to a ceramic material, comprising lead zirconate titanate, which additionally contains K and optionally Cu. The ceramic material can be used in an electroceramic component, for example a piezoelectric actuator. The invention also relates to methods for producing the ceramic material and the electronic component. | 09-25-2014 |