Method for manufacturing a porous abradable coating made of ceramic material

A manufacturing process for a porous abradable coating made of ceramic material comprising a layer of ceramic material having pores, the manufacturing process comprising:

• filling at least partially of a mold with hollow glass beads or hollow thermosetting polymer beads;
• filling of the mold with a slurry;
• filtration and discharge of a solvent from the slurry so that the mold contains a green body of the ceramic part comprising the hollow glass beads or the hollow thermosetting polymer beads;
• sintering heat treatment of the green body of the ceramic part to obtain the layer of ceramic material having pores, a maximum sintering temperature of the green body of the ceramic part being either higher than the melting temperature of the hollow glass beads so that at the end of the sintering heat treatment the hollow glass beads are melted, or higher than the decomposition temperature of the hollow thermosetting polymer beads so that at the end of the sintering heat treatment, the hollow thermosetting polymer beads are decomposed.