Composition and method for making parts consisting of oxide ceramics or hybrid parts by a stereolithographic technique

Composition for manufacturing a part consisting of at least one oxide ceramic, or a hybrid part comprising at least one oxide ceramic and organic constituents, by a stereolithography technique, said composition consisting of:

• at least one photopolymerisable organic compound;
• at least one photoinitiator;
• at least one precursor of the oxide ceramic;
• optionally at least one UV absorbing agent;
• optionally at least one dispersing agent;
• and
• optionally at least one plasticising agent;
• wherein:
• said composition comprises from 25 wt % to 70 wt %, relative to the total weight of the composition, of the at least one precursor of the oxide ceramic;
• and wherein:
• said at least one precursor of the oxide ceramic comprises a mixture comprising a nanometric powder of the oxide ceramic, and a micrometric powder of the oxide ceramic;
• the mixture comprising a nanometric powder of the oxide ceramic and a micrometric powder of the oxide ceramic comprises from 10 wt % to 30 wt %, relative to the weight of the mixture, of the nanometric powder of the oxide ceramic, and from 70 wt % to 90 wt %, relative to the weight of the mixture, of the micrometric powder of the oxide ceramic.