| 摘要 |
PCT No. PCT/DE82/00120 Sec. 371 Date Feb. 3, 1983 Sec. 102(e) Date Feb. 3, 1983 PCT Filed Jun. 4, 1982 PCT Pub. No. WO82/04295 PCT Pub. Date Dec. 9, 1982.In lubricated friction couplings, at least two surfaces are connected by frictional engagement. These surfaces in engagement with one another are termed friction partners. One friction partner consists of a ceramic material and the other friction partner consists of a metallic material or a ceramic material having a chemical composition other than that of the first friction partner. The metallic material is a material of the iron group, preferably sintered metal. The ceramic material is oxide ceramic, especially aluminium oxide or zirconium oxide or silicon nitride. The pairing of metal, especially sintered steel, against oxide ceramic increases the service life of the coupling while at the same time reducing the coupling travel. The ceramic material can be connected to a carrier member, for example in the form of segments sintered into the carrier member. An important factor is the surface structure of the friction partners, that is to say the oxide ceramic should have a surface having a high proportion of pores.
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