Abstract: To manufacture a turbine wheel having blades made of a ceramic or composite material and inserted into a metal hub, firstly blades (16) are manufactured that are right cylindrical, each blade having a base (18) through which a hole is formed; a cylindrical ring (20) is formed, the ring being provided with orifices through which the bases (18) of the respective blades (16) are inserted; the blade bases (18) are successively threaded onto an open annular rigid metal wire (30); the resulting assembly (16, 20, 30) is disposed inside a sealed housing (161); hot isostatic compaction is performed so as to compact a metal alloy in powder form (41) inside the sealed housing (161) so as to make the hub of the turbine wheel (100) while embedding the blade bases (18) and the metal wire (30) by using the powder metallurgy technique; and the outside portion of the sealed housing (161) delimiting the hub of the turbine wheel (101) is machined. Application, in particular, to the field of aeronautical or space engineering.

Abstract: The method of manufacturing a combustion chamber wall, in particular for a rocket engine, includes the following steps:[a] making a corrugated metal inner shell by deforming a first plane or tubular sheet;[b] making a metal outer shell from a second plane or tubular sheet;[c] assembling the corrugated inner shell and the outer shell together and welding them together locally;[d] forming an inner coating on the inside face of the corrugated inner shell by the technique of powder metallurgy using a container for the material that is to constitute the inner coating, the outside face of said container being constituted directly by the inside face of said corrugated inner shell and the inside face of said container being made using removable non-consumable sections or a soluble core that is removed by selective chemical dissolving after the inner coating has been formed by applying a hot isostatic compacting cycle; and[e] forming an outer coating on the outside face of the outer shell.