PROCESS FOR REACTIVE FRITTAGE ASSEMBLY OF INTERMETALLIC MATERIAL PARTS AND DERIVED APPLICATIONS

摘要

A method of assembling two elements comprising at least one intermetallic material comprises the following steps: BR/ - mixture of elementary powders of an intermetallic compound of the same type as said material to be assembled, BR/ - compaction and placing in the form of an intermediate element from said compound, at a temperature lower than that of the reactive sintering of the compound, BR/ - establishment of the intermediate element between the surfaces to be assembled, BR/ - heat treatment according to a first thermal cycle adapted to the intermetallic compound so as to obtain a reactive sintering of the intermediate element and a consolidation of the assembly, BR/ - diffusion treatment according to a second thermal cycle, at a temperature greater than 0, 8 times the melting temperature of the compound so as to mechanically consolidate the assembly.