PROCESS FOR REACTIVE FRITTAGE SHAPING OF INTERMETALLIC MATERIALS

摘要

The invention relates to a process for forming by reactive sintering of intermetallic materials such as TiNi, TiAl which comprises the preparation of a mixture of elemental metal powders in the desired proportions (1) (2), the compression (3 ) of the mixture of elemental powders to obtain a tablet of these powders, then the cladding (4) of this powder compact in a pressure and heat-resistant sheath, the sheathed product being subsequently subjected to a reactive sintering (5) to obtain the intermetallic compound and to a final hot densification process (6). The sheath is then generally removed (7).