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公开(公告)号：EP1737803A1
公开(公告)日：2007-01-03
申请号：EP05738488.5
申请日：2005-04-01
发明人： RECKERS, Stephan , BRAM, Martin , BUCHKREMER, Hans, Peter , JANSEN, Sebastian , WELP, Ewald, G. , STEINBRECH, Rolf
IPC分类号： C04B35/645 , C04B41/51 , F16F1/02 , H01M8/02
CPC分类号： F16F1/024 , F16F1/022 , F16F2224/0275
摘要： The invention relates to a ceramic spring element for using at temperatures above 600 °C. Said spring element comprises especially yttrium-stabilised Zr02, scandium-stabilised Zr02, aluminium nitride, aluminium oxide, silicon carbide, or a perovskite with the structure ABO3 where A = lanthanide, alkaline earth or yttrium and B = transition metals, especially Cr, Mn, Fe, Ni, Co, Cu. Said spring element is coated in an electroconductive manner and/or consists of an electroconductive ceramic. The inventive spring element is formed as a ceramic film in a tool under the influence of pressure and at a temperature close to the sintering temperature of the ceramic, and is especially suitable for using in a high temperature fuel cell. Unlike metallic spring elements, the ceramic spring element retains its elastic properties over the long-term, a reduction of the restoring force by creeping processes being negligible in this temperature range.
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公开(公告)号：EP1576685A2
公开(公告)日：2005-09-21
申请号：EP02769929.7
申请日：2002-09-07
IPC分类号： H01M8/02
CPC分类号： F16J15/122 , H01M8/0271 , H01M8/0282 , H01M8/2425 , H01M2008/1293
摘要： The invention relates to a high-temperature resistant seal, particularly a seal for use in a high-temperature fuel cell. The inventive seal comprises a structured metallic layer having at least one area on whose surface a filler is placed. The filler is comprised, in particular, of clay minerals or ceramic materials. The seal thus advantageously combines the sealing properties of a metallic layer, for example, of an undulated metal foil with the elastic properties of the filler. The seal is particularly suited for use at high temperatures and thus, for example, in high-temperature fuel cells.
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