Composites for wear

专利名称：Composites for wear发明人：Edward Bullock,Jean B. Veyret申请号：US08/408439申请日：19950322公开号：US05612265A公开日：19970318

摘要：The invention discloses a long carbon fibre reinforced ceramic matrix compositein which the matrix is an engineering ceramic, characterized in that the engineeringceramic comprises Al.sub.2 O.sub.3 and Y.sub.2 O.sub. 3 as highly refractory sinteradditives, the composite has a high density of at least 95% theoretical, a high fibrecontent of at least 30% by volume, and that substantially all the fibres are uniformlydistributed within the matrix with a uniform inter-fibre spacing of 10-15 micrometer. Theinvention also discloses a process for preparing such a composite, characterized in thatunidirectionally wound fibre tapes are cut into sections, the sections are infiltrated by thematrix material in the form of a slurry of the ceramic itself or as a precursor material, theinfiltrated fibre tape sections are successively stacked and pressed wet to achieveintermeshing of the tape sections, compacted, dried and hot pressed. The invention alsorelates to the use of said composite as a self-lubricating material for dry slidingapplications, especially on metals.

申请人：EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM)

代理机构：Pennie & Edmonds

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