Protective coating for workpieces, especially of c

专利名称：Protective coating for workpieces, especially

of carbon composite material, workpieceswith a protective coating of this type, andprocess for producing such protectivecoating

发明人：Gerhard Solow,Udo Wendt,Ingo Hager,Fred

Gustav Wihsmann

申请号：US08/845761申请日：19970418公开号：US06071615A公开日：20000606

摘要：A process is proposed for producing a protective layer on workpieces made, forexample, from carbon composite material, for use at temperatures above 1000° C. Inaccordance with the invention, a comminuted solids mixture with refractory ceramicpowder articles, e.g., of carbides, nitrides and/or silicides, preferably from groups III, IVand/or VIb of the periodic table, and with at least one compound of the general

elemental composition Me.sub.x B.sub.z, where Me represents one of the elements Si, Al,Zr, Ti, Hf or Y, and x and z each represent a number from 1 to 6, and optionally, inaddition, with at least one already formed glass with the following general oxidiccomposition: Al. sub.2 O.sub.3 --B.sub.2 O.sub.3 --SiO.sub.2 --RO, where RO representsMgO, CaO or BaO, is dispersed in a liquid carrier system, deposited on free surfaces of aworkpiece, and heated together with the workpiece briefly with air access to a maximumtemperature of 1200° C. The invention is further directed to a corresponding protective

layer and to a workpiece with such a protective coating.

申请人：MAN TECHNOLOGIE AKTIENGESELLSCHAFT

代理机构：McAulay Nissen Goldberg Kiel & Hand, LLP

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