Ceramic sliding element with aluminum oxide and silicon nitride members
AssigneeFeldmuehle Aktiengesellschaft
InventorsHans-Jurgen Comans, Ulrich Krohn, Hans Jud, Hans-Gerd Rittel
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Abstract
In a sliding element having first and second members in friction and/or sealing contact, the first member s made by sintering a ceramic mixture based on silicon nitride, the content of the silicon nitride phase and/or of the silicon nitride mixed crystal phase being at least 60 weight-percent and the second counter-element member being formed of a ceramic material based on aluminum oxide.
Claims10
In a sliding element of the type comprising first and second counter-element members in friction contact and/or sealing contact with each other the improvement comprising forming said first member of a silicon nitride based ceramic material having a content of silicon nitride phase and/or of silicon nitride mixed crystal phase of at least 60 wt.-%, and forming said counter-element second member of an aluminum oxide based ceramic material.
Dependencies are inferred from the claim text.