Patent ID: 6322871
Filing Date: 2001-11-27
Classification: B23D,B23K,C23C,Y10T

Abstract:
A method of joining a ceramic body to a substrate wherein said ceramic body has a ceramic bonding surface and said substrate has a substrate bonding surface, said method comprising:a) providing the bonding surface of the ceramic body as a clean surface which is substantially free of contaminants;b) etching the bonding surface of the ceramic body;c) applying to the ceramic bonding surface a coating of a metallic material capable of being applied as a surface layer to the ceramic bonding surface and being bonded to ceramic bonding surface;d) then in normal atmospheric air bonding the ceramic body to the substrate by:i) placing the bonding surfaces of the ceramic body and the substrate against one another with a brazing material therebetween and bonding these to one another by a brazing process, said coating material comprising at least in part cobalt;ii) placing the bonding surfaces of the ceramic body and the substrate against one another and welding these.