PIEZOELECTRIC COMPONENT COMPRISING A SECURITY LAYER AND AN INFILTRATION BARRIER AND A METHOD FOR THE PRODUCTION THEREOF
摘要
<p>A piezoelectric component with a monolithic stack, has electrode layers and piezoceramic layers arranged alternately one on top of the other, the piezoceramic layers have a piezoceramic, and having at least one porous security layer arranged in the stack for the formation of a crack if mechanical overload of the stack should occur. The piezoelectric component has an infiltration barrier arranged between the security layer and a lateral surface section of the stack for suppressing the penetration of a foreign substance into the security layer. The piezoelectric component can be as a piezoactuator for controlling a valve, particularly a valve of an internal combustion engine.</p>
申请公布号
EP2140508(A1)
申请公布日期
2010.01.06
申请号
EP20080718215
申请日期
2008.03.26
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
DENZLER, MICHAEL;HAMANN, CHRISTOPH;KASTL, HARALD JOHANNES;KOHN, STEFAN;KRONBERGER, MAXIMILIAN;REICHINGER, CHRISTIAN;SCHUH, CARSTEN;ZUMSTRULL, CLAUS